74 files changed, 2096 insertions, 0 deletions

diff --git a/src/ext/Bal/test/WixToolsetTest.Bal/BalExtensionFixture.cs b/src/ext/Bal/test/WixToolsetTest.Bal/BalExtensionFixture.cs
new file mode 100644
index 00000000..2ff57c55
--- /dev/null
+++ b/src/ext/Bal/test/WixToolsetTest.Bal/BalExtensionFixture.cs
@@ -0,0 +1,133 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolsetTest.Bal
+{
+    using System.IO;
+    using System.Linq;
+    using System.Xml;
+    using WixBuildTools.TestSupport;
+    using WixToolset.Core.TestPackage;
+    using Xunit;
+
+    public class BalExtensionFixture
+    {
+        [Fact]
+        public void CanBuildUsingDisplayInternalUICondition()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = Path.Combine(baseFolder, "bin", "test.exe");
+                var bundleSourceFolder = TestData.Get(@"TestData\WixStdBa");
+                var intermediateFolder = Path.Combine(baseFolder, "obj");
+                var baFolderPath = Path.Combine(baseFolder, "ba");
+                var extractFolderPath = Path.Combine(baseFolder, "extract");
+
+                var compileResult = WixRunner.Execute(new[]
+                {
+                    "build",
+                    Path.Combine(bundleSourceFolder, "DisplayInternalUIConditionBundle.wxs"),
+                    "-ext", TestData.Get(@"WixToolset.Bal.wixext.dll"),
+                    "-intermediateFolder", intermediateFolder,
+                    "-bindpath", Path.Combine(bundleSourceFolder, "data"),
+                    "-o", bundleFile,
+                });
+                compileResult.AssertSuccess();
+
+                Assert.True(File.Exists(bundleFile));
+
+                var extractResult = BundleExtractor.ExtractBAContainer(null, bundleFile, baFolderPath, extractFolderPath);
+                extractResult.AssertSuccess();
+
+                var balPackageInfos = extractResult.SelectBADataNodes("/ba:BootstrapperApplicationData/ba:WixBalPackageInfo");
+                var balPackageInfo = (XmlNode)Assert.Single(balPackageInfos);
+                Assert.Equal("<WixBalPackageInfo PackageId='test.msi' DisplayInternalUICondition='1' />", balPackageInfo.GetTestXml());
+
+                Assert.True(File.Exists(Path.Combine(baFolderPath, "thm.wxl")));
+            }
+        }
+
+        [Fact]
+        public void CanBuildUsingOverridable()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = Path.Combine(baseFolder, "bin", "test.exe");
+                var bundleSourceFolder = TestData.Get(@"TestData\Overridable");
+                var intermediateFolder = Path.Combine(baseFolder, "obj");
+                var baFolderPath = Path.Combine(baseFolder, "ba");
+                var extractFolderPath = Path.Combine(baseFolder, "extract");
+
+                var compileResult = WixRunner.Execute(new[]
+                {
+                    "build",
+                    Path.Combine(bundleSourceFolder, "Bundle.wxs"),
+                    "-ext", TestData.Get(@"WixToolset.Bal.wixext.dll"),
+                    "-intermediateFolder", intermediateFolder,
+                    "-o", bundleFile,
+                });
+                compileResult.AssertSuccess();
+
+                Assert.True(File.Exists(bundleFile));
+
+                var extractResult = BundleExtractor.ExtractBAContainer(null, bundleFile, baFolderPath, extractFolderPath);
+                extractResult.AssertSuccess();
+
+                var balOverridableVariables = extractResult.SelectBADataNodes("/ba:BootstrapperApplicationData/ba:WixStdbaOverridableVariable");
+                var balOverridableVariable = (XmlNode)Assert.Single(balOverridableVariables);
+                Assert.Equal("<WixStdbaOverridableVariable Name='Test1' />", balOverridableVariable.GetTestXml());
+            }
+        }
+
+        [Fact]
+        public void CanBuildUsingWixStdBa()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = Path.Combine(baseFolder, "bin", "test.exe");
+                var bundleSourceFolder = TestData.Get(@"TestData\WixStdBa");
+                var intermediateFolder = Path.Combine(baseFolder, "obj");
+
+                var compileResult = WixRunner.Execute(new[]
+                {
+                    "build",
+                    Path.Combine(bundleSourceFolder, "Bundle.wxs"),
+                    "-ext", TestData.Get(@"WixToolset.Bal.wixext.dll"),
+                    "-intermediateFolder", intermediateFolder,
+                    "-o", bundleFile,
+                });
+                compileResult.AssertSuccess();
+
+                Assert.True(File.Exists(bundleFile));
+            }
+        }
+
+        [Fact]
+        public void CantBuildUsingMBAWithNoPrereqs()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = Path.Combine(baseFolder, "bin", "test.exe");
+                var bundleSourceFolder = TestData.Get(@"TestData\MBA");
+                var intermediateFolder = Path.Combine(baseFolder, "obj");
+
+                var compileResult = WixRunner.Execute(new[]
+                {
+                    "build",
+                    Path.Combine(bundleSourceFolder, "Bundle.wxs"),
+                    "-ext", TestData.Get(@"WixToolset.Bal.wixext.dll"),
+                    "-intermediateFolder", intermediateFolder,
+                    "-o", bundleFile,
+                });
+                Assert.Equal(6802, compileResult.ExitCode);
+                Assert.Equal("There must be at least one PrereqPackage when using the ManagedBootstrapperApplicationHost.\nThis is typically done by using the WixNetFxExtension and referencing one of the NetFxAsPrereq package groups.", compileResult.Messages[0].ToString());
+
+                Assert.False(File.Exists(bundleFile));
+                Assert.False(File.Exists(Path.Combine(intermediateFolder, "test.exe")));
+            }
+        }
+    }
+}
diff --git a/src/ext/Bal/test/WixToolsetTest.Bal/TestData/MBA/Bundle.wxs b/src/ext/Bal/test/WixToolsetTest.Bal/TestData/MBA/Bundle.wxs
new file mode 100644
index 00000000..ba1aefba
--- /dev/null
+++ b/src/ext/Bal/test/WixToolsetTest.Bal/TestData/MBA/Bundle.wxs
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs"
+     xmlns:bal="http://wixtoolset.org/schemas/v4/wxs/bal">
+    <Bundle Name="WixStdBa" Version="1.0.0.0" Manufacturer="Example Corporation" UpgradeCode="75D5D534-E177-4689-AAE9-CAC1C39002C2">
+        <BootstrapperApplication>
+            <bal:WixManagedBootstrapperApplicationHost />
+        </BootstrapperApplication>
+        <Chain>
+            <ExePackage Permanent="yes" DetectCondition="none" SourceFile="runtimes\win-x86\native\wixnative.exe" />
+        </Chain>
+    </Bundle>
+</Wix>
diff --git a/src/ext/Bal/test/WixToolsetTest.Bal/TestData/Overridable/Bundle.wxs b/src/ext/Bal/test/WixToolsetTest.Bal/TestData/Overridable/Bundle.wxs
new file mode 100644
index 00000000..91380c69
--- /dev/null
+++ b/src/ext/Bal/test/WixToolsetTest.Bal/TestData/Overridable/Bundle.wxs
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs"
+     xmlns:bal="http://wixtoolset.org/schemas/v4/wxs/bal">
+    <Bundle Name="WixStdBa" Version="1.0.0.0" Manufacturer="Example Corporation" UpgradeCode="75D5D534-E177-4689-AAE9-CAC1C39002C2">
+        <BootstrapperApplication>
+            <bal:WixStandardBootstrapperApplication LicenseUrl="http://wixtoolset.org/about/license/" Theme="hyperlinkLicense" />
+        </BootstrapperApplication>
+        <Variable Name="Test1" bal:Overridable="yes" />
+        <Chain>
+            <ExePackage Permanent="yes" DetectCondition="none" SourceFile="runtimes\win-x86\native\wixnative.exe" />
+        </Chain>
+    </Bundle>
+</Wix>
diff --git a/src/ext/Bal/test/WixToolsetTest.Bal/TestData/WixStdBa/Bundle.wxs b/src/ext/Bal/test/WixToolsetTest.Bal/TestData/WixStdBa/Bundle.wxs
new file mode 100644
index 00000000..c17b53ff
--- /dev/null
+++ b/src/ext/Bal/test/WixToolsetTest.Bal/TestData/WixStdBa/Bundle.wxs
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs"
+     xmlns:bal="http://wixtoolset.org/schemas/v4/wxs/bal">
+    <Bundle Name="WixStdBa" Version="1.0.0.0" Manufacturer="Example Corporation" UpgradeCode="75D5D534-E177-4689-AAE9-CAC1C39002C2">
+        <BootstrapperApplication>
+            <bal:WixStandardBootstrapperApplication LicenseUrl="http://wixtoolset.org/about/license/" Theme="hyperlinkLicense" />
+        </BootstrapperApplication>
+        <Chain>
+            <ExePackage Permanent="yes" DetectCondition="none" SourceFile="runtimes\win-x86\native\wixnative.exe" />
+        </Chain>
+    </Bundle>
+</Wix>
diff --git a/src/ext/Bal/test/WixToolsetTest.Bal/TestData/WixStdBa/Data/test.msi b/src/ext/Bal/test/WixToolsetTest.Bal/TestData/WixStdBa/Data/test.msi
new file mode 100644
index 00000000..94aacd1a
--- /dev/null
+++ b/src/ext/Bal/test/WixToolsetTest.Bal/TestData/WixStdBa/Data/test.msi
diff --git a/src/ext/Bal/test/WixToolsetTest.Bal/TestData/WixStdBa/DisplayInternalUIConditionBundle.wxs b/src/ext/Bal/test/WixToolsetTest.Bal/TestData/WixStdBa/DisplayInternalUIConditionBundle.wxs
new file mode 100644
index 00000000..f08cfe6a
--- /dev/null
+++ b/src/ext/Bal/test/WixToolsetTest.Bal/TestData/WixStdBa/DisplayInternalUIConditionBundle.wxs
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs"
+     xmlns:bal="http://wixtoolset.org/schemas/v4/wxs/bal">
+    <Bundle Name="WixStdBa" Version="1.0.0.0" Manufacturer="Example Corporation" UpgradeCode="75D5D534-E177-4689-AAE9-CAC1C39002C2">
+        <BootstrapperApplication>
+            <bal:WixStandardBootstrapperApplication LicenseUrl="http://wixtoolset.org/about/license/" Theme="hyperlinkLicense" />
+        </BootstrapperApplication>
+        <Chain>
+            <MsiPackage SourceFile="test.msi" bal:DisplayInternalUICondition="1" />
+        </Chain>
+    </Bundle>
+</Wix>
diff --git a/src/ext/Bal/test/WixToolsetTest.Bal/WixToolsetTest.Bal.csproj b/src/ext/Bal/test/WixToolsetTest.Bal/WixToolsetTest.Bal.csproj
new file mode 100644
index 00000000..c9ab4219
--- /dev/null
+++ b/src/ext/Bal/test/WixToolsetTest.Bal/WixToolsetTest.Bal.csproj
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Content Include="TestData\MBA\Bundle.wxs" CopyToOutputDirectory="PreserveNewest" />
+    <Content Include="TestData\Overridable\Bundle.wxs" CopyToOutputDirectory="PreserveNewest" />
+    <Content Include="TestData\WixStdBa\Bundle.wxs" CopyToOutputDirectory="PreserveNewest" />
+    <Content Include="TestData\WixStdBa\Data\test.msi" CopyToOutputDirectory="PreserveNewest" />
+    <Content Include="TestData\WixStdBa\DisplayInternalUIConditionBundle.wxs" CopyToOutputDirectory="PreserveNewest" />
+  </ItemGroup>
+
+  <Target Name="CopyExtensions" AfterTargets="Build">
+    <Copy DestinationFolder="$(OutputPath)" SourceFiles="@(WixExtension)" />
+  </Target>
+
+  <ItemGroup>
+    <ProjectReference Include="..\..\wixext\WixToolset.Bal.wixext.csproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="WixToolset.Core" Version="4.0.*" />
+    <PackageReference Include="WixToolset.Core.Burn" Version="4.0.*" />
+    <PackageReference Include="WixToolset.Core.WindowsInstaller" Version="4.0.*" />
+    <PackageReference Include="WixToolset.Core.TestPackage" Version="4.0.*" />
+    <PackageReference Include="WixToolset.Data" Version="4.0.*" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="WixBuildTools.TestSupport" Version="4.0.*" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.3.0" />
+    <PackageReference Include="xunit" Version="2.4.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" PrivateAssets="All" />
+  </ItemGroup>
+</Project>
diff --git a/src/ext/Bal/test/WixToolsetTest.Bal/WixToolsetTest.Bal.v3.ncrunchproject b/src/ext/Bal/test/WixToolsetTest.Bal/WixToolsetTest.Bal.v3.ncrunchproject
new file mode 100644
index 00000000..7b5b2139
--- /dev/null
+++ b/src/ext/Bal/test/WixToolsetTest.Bal/WixToolsetTest.Bal.v3.ncrunchproject
@@ -0,0 +1,5 @@
+<ProjectConfiguration>
+  <Settings>
+    <CopyReferencedAssembliesToWorkspace>True</CopyReferencedAssembliesToWorkspace>
+  </Settings>
+</ProjectConfiguration>
\ No newline at end of file
diff --git a/src/ext/Bal/test/WixToolsetTest.ManagedHost/DncHostFixture.cs b/src/ext/Bal/test/WixToolsetTest.ManagedHost/DncHostFixture.cs
new file mode 100644
index 00000000..af5f2543
--- /dev/null
+++ b/src/ext/Bal/test/WixToolsetTest.ManagedHost/DncHostFixture.cs
@@ -0,0 +1,209 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolsetTest.ManagedHost
+{
+    using System.IO;
+    using WixBuildTools.TestSupport;
+    using WixToolset.Core.TestPackage;
+    using Xunit;
+
+    public class DncHostFixture
+    {
+        static readonly string bundleBasePath = TestData.Get("..", "examples");
+
+        [Fact]
+        public void CanLoadFDDEarliestCoreMBA()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = TestData.Get(bundleBasePath, "EarliestCoreBundleFDD.exe");
+                var testEngine = new TestEngine();
+
+                var result = testEngine.RunShutdownEngine(bundleFile, baseFolder);
+                var logMessages = result.Output;
+                Assert.Equal("Loading .NET Core FDD bootstrapper application.", logMessages[0]);
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[1]);
+                Assert.Equal("EarliestCoreBA", logMessages[2]);
+                Assert.Equal("Shutdown,ReloadBootstrapper,0", logMessages[3]);
+            }
+        }
+
+        [Fact]
+        public void CanLoadSCDEarliestCoreMBA()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = TestData.Get(bundleBasePath, "EarliestCoreBundleSCD.exe");
+                var testEngine = new TestEngine();
+
+                var result = testEngine.RunShutdownEngine(bundleFile, baseFolder);
+                var logMessages = result.Output;
+                Assert.Equal("Loading .NET Core SCD bootstrapper application.", logMessages[0]);
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[1]);
+                Assert.Equal("EarliestCoreBA", logMessages[2]);
+                Assert.Equal("Shutdown,ReloadBootstrapper,0", logMessages[3]);
+            }
+        }
+
+        [Fact]
+        public void CanLoadTrimmedSCDEarliestCoreMBA()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = TestData.Get(bundleBasePath, "EarliestCoreBundleTrimmedSCD.exe");
+                var testEngine = new TestEngine();
+
+                var result = testEngine.RunShutdownEngine(bundleFile, baseFolder);
+                var logMessages = result.Output;
+                Assert.Equal("Loading .NET Core SCD bootstrapper application.", logMessages[0]);
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[1]);
+                Assert.Equal("EarliestCoreBA", logMessages[2]);
+                Assert.Equal("Shutdown,ReloadBootstrapper,0", logMessages[3]);
+            }
+        }
+
+        [Fact]
+        public void CanReloadSCDEarliestCoreMBA()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = TestData.Get(bundleBasePath, "EarliestCoreBundleSCD.exe");
+                var testEngine = new TestEngine();
+
+                var result = testEngine.RunReloadEngine(bundleFile, baseFolder);
+                var logMessages = result.Output;
+                Assert.Equal("Loading .NET Core SCD bootstrapper application.", logMessages[0]);
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[1]);
+                Assert.Equal("EarliestCoreBA", logMessages[2]);
+                Assert.Equal("Shutdown,ReloadBootstrapper,0", logMessages[3]);
+                Assert.Equal("Loading .NET Core SCD bootstrapper application.", logMessages[4]);
+                Assert.Equal("Reloaded 1 time(s)", logMessages[5]); // dnchost doesn't currently support unloading
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[6]);
+                Assert.Equal("EarliestCoreBA", logMessages[7]);
+                Assert.Equal("Shutdown,Restart,0", logMessages[8]);
+            }
+        }
+
+        [Fact]
+        public void CanLoadFDDLatestCoreMBA()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = TestData.Get(bundleBasePath, "LatestCoreBundleFDD.exe");
+                var testEngine = new TestEngine();
+
+                var result = testEngine.RunShutdownEngine(bundleFile, baseFolder);
+                var logMessages = result.Output;
+                Assert.Equal("Loading .NET Core FDD bootstrapper application.", logMessages[0]);
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[1]);
+                Assert.Equal("LatestCoreBA", logMessages[2]);
+                Assert.Equal("Shutdown,ReloadBootstrapper,0", logMessages[3]);
+            }
+        }
+
+        [Fact]
+        public void CanReloadFDDLatestCoreMBA()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = TestData.Get(bundleBasePath, "LatestCoreBundleFDD.exe");
+                var testEngine = new TestEngine();
+
+                var result = testEngine.RunReloadEngine(bundleFile, baseFolder);
+                var logMessages = result.Output;
+                Assert.Equal("Loading .NET Core FDD bootstrapper application.", logMessages[0]);
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[1]);
+                Assert.Equal("LatestCoreBA", logMessages[2]);
+                Assert.Equal("Shutdown,ReloadBootstrapper,0", logMessages[3]);
+                Assert.Equal("Loading .NET Core FDD bootstrapper application.", logMessages[4]);
+                Assert.Equal("Reloaded 1 time(s)", logMessages[5]); // dnchost doesn't currently support unloading
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[6]);
+                Assert.Equal("LatestCoreBA", logMessages[7]);
+                Assert.Equal("Shutdown,Restart,0", logMessages[8]);
+            }
+        }
+
+        [Fact]
+        public void CanLoadSCDLatestCoreMBA()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = TestData.Get(bundleBasePath, "LatestCoreBundleSCD.exe");
+                var testEngine = new TestEngine();
+
+                var result = testEngine.RunShutdownEngine(bundleFile, baseFolder);
+                var logMessages = result.Output;
+                Assert.Equal("Loading .NET Core SCD bootstrapper application.", logMessages[0]);
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[1]);
+                Assert.Equal("LatestCoreBA", logMessages[2]);
+                Assert.Equal("Shutdown,ReloadBootstrapper,0", logMessages[3]);
+            }
+        }
+
+        [Fact]
+        public void CanLoadTrimmedSCDLatestCoreMBA()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = TestData.Get(bundleBasePath, "LatestCoreBundleTrimmedSCD.exe");
+                var testEngine = new TestEngine();
+
+                var result = testEngine.RunShutdownEngine(bundleFile, baseFolder);
+                var logMessages = result.Output;
+                Assert.Equal("Loading .NET Core SCD bootstrapper application.", logMessages[0]);
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[1]);
+                Assert.Equal("LatestCoreBA", logMessages[2]);
+                Assert.Equal("Shutdown,ReloadBootstrapper,0", logMessages[3]);
+            }
+        }
+
+        [Fact]
+        public void CanReloadSCDLatestCoreMBA()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = TestData.Get(bundleBasePath, "LatestCoreBundleSCD.exe");
+                var testEngine = new TestEngine();
+
+                var result = testEngine.RunReloadEngine(bundleFile, baseFolder);
+                var logMessages = result.Output;
+                Assert.Equal("Loading .NET Core SCD bootstrapper application.", logMessages[0]);
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[1]);
+                Assert.Equal("LatestCoreBA", logMessages[2]);
+                Assert.Equal("Shutdown,ReloadBootstrapper,0", logMessages[3]);
+                Assert.Equal("Loading .NET Core SCD bootstrapper application.", logMessages[4]);
+                Assert.Equal("Reloaded 1 time(s)", logMessages[5]); // dnchost doesn't currently support unloading
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[6]);
+                Assert.Equal("LatestCoreBA", logMessages[7]);
+                Assert.Equal("Shutdown,Restart,0", logMessages[8]);
+            }
+        }
+
+        [Fact]
+        public void CanLoadFDDWPFCoreMBA()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = TestData.Get(bundleBasePath, "WPFCoreBundleFDD.exe");
+                var testEngine = new TestEngine();
+
+                var result = testEngine.RunShutdownEngine(bundleFile, baseFolder);
+                var logMessages = result.Output;
+                Assert.Equal("Loading .NET Core FDD bootstrapper application.", logMessages[0]);
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[1]);
+                Assert.Equal("WPFCoreBA", logMessages[2]);
+                Assert.Equal("Shutdown,ReloadBootstrapper,0", logMessages[3]);
+            }
+        }
+    }
+}
diff --git a/src/ext/Bal/test/WixToolsetTest.ManagedHost/MbaHostFixture.cs b/src/ext/Bal/test/WixToolsetTest.ManagedHost/MbaHostFixture.cs
new file mode 100644
index 00000000..dd37ee58
--- /dev/null
+++ b/src/ext/Bal/test/WixToolsetTest.ManagedHost/MbaHostFixture.cs
@@ -0,0 +1,94 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolsetTest.ManagedHost
+{
+    using System.IO;
+    using WixBuildTools.TestSupport;
+    using WixToolset.Core.TestPackage;
+    using Xunit;
+
+    public class MbaHostFixture
+    {
+        static readonly string bundleBasePath = TestData.Get("..", "examples");
+
+        [Fact]
+        public void CanLoadFullFramework2MBA()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = TestData.Get(bundleBasePath, "FullFramework2Bundle.exe");
+                var testEngine = new TestEngine();
+
+                var result = testEngine.RunShutdownEngine(bundleFile, baseFolder);
+                var logMessages = result.Output;
+                Assert.Equal("Loading managed bootstrapper application.", logMessages[0]);
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[1]);
+                Assert.Equal("FullFramework2BA", logMessages[2]);
+                Assert.Equal("Shutdown,ReloadBootstrapper,0", logMessages[3]);
+            }
+        }
+
+        [Fact]
+        public void CanLoadFullFramework4MBA()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = TestData.Get(bundleBasePath, "FullFramework4Bundle.exe");
+                var testEngine = new TestEngine();
+
+                var result = testEngine.RunShutdownEngine(bundleFile, baseFolder);
+                var logMessages = result.Output;
+                Assert.Equal("Loading managed bootstrapper application.", logMessages[0]);
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[1]);
+                Assert.Equal("FullFramework4BA", logMessages[2]);
+                Assert.Equal("Shutdown,ReloadBootstrapper,0", logMessages[3]);
+            }
+        }
+
+        [Fact]
+        public void CanReloadFullFramework2MBA()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = TestData.Get(bundleBasePath, "FullFramework2Bundle.exe");
+                var testEngine = new TestEngine();
+
+                var result = testEngine.RunReloadEngine(bundleFile, baseFolder);
+                var logMessages = result.Output;
+                Assert.Equal("Loading managed bootstrapper application.", logMessages[0]);
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[1]);
+                Assert.Equal("FullFramework2BA", logMessages[2]);
+                Assert.Equal("Shutdown,ReloadBootstrapper,0", logMessages[3]);
+                Assert.Equal("Loading managed bootstrapper application.", logMessages[4]);
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[5]);
+                Assert.Equal("FullFramework2BA", logMessages[6]);
+                Assert.Equal("Shutdown,Restart,0", logMessages[7]);
+            }
+        }
+
+        [Fact]
+        public void CanReloadFullFramework4MBA()
+        {
+            using (var fs = new DisposableFileSystem())
+            {
+                var baseFolder = fs.GetFolder();
+                var bundleFile = TestData.Get(bundleBasePath, "FullFramework4Bundle.exe");
+                var testEngine = new TestEngine();
+
+                var result = testEngine.RunReloadEngine(bundleFile, baseFolder);
+                var logMessages = result.Output;
+                Assert.Equal("Loading managed bootstrapper application.", logMessages[0]);
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[1]);
+                Assert.Equal("FullFramework4BA", logMessages[2]);
+                Assert.Equal("Shutdown,ReloadBootstrapper,0", logMessages[3]);
+                Assert.Equal("Loading managed bootstrapper application.", logMessages[4]);
+                Assert.Equal("Creating BA thread to run asynchronously.", logMessages[5]);
+                Assert.Equal("FullFramework4BA", logMessages[6]);
+                Assert.Equal("Shutdown,Restart,0", logMessages[7]);
+            }
+        }
+    }
+}
diff --git a/src/ext/Bal/test/WixToolsetTest.ManagedHost/README.md b/src/ext/Bal/test/WixToolsetTest.ManagedHost/README.md
new file mode 100644
index 00000000..d7e73df2
--- /dev/null
+++ b/src/ext/Bal/test/WixToolsetTest.ManagedHost/README.md
@@ -0,0 +1,5 @@
+In order to properly test dnchost and mbahost,
+the managed BAs need to be published and a bundle needs to be built for each scenario.
+Making this happen on every build for the solution takes too long,
+so this project relies on manually running appveyor.cmd to publish everything before the tests can be run.
+appveyor.cmd needs to be ran again every time changes are made in other projects.
\ No newline at end of file
diff --git a/src/ext/Bal/test/WixToolsetTest.ManagedHost/TestEngine.cs b/src/ext/Bal/test/WixToolsetTest.ManagedHost/TestEngine.cs
new file mode 100644
index 00000000..44538227
--- /dev/null
+++ b/src/ext/Bal/test/WixToolsetTest.ManagedHost/TestEngine.cs
@@ -0,0 +1,74 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolsetTest.ManagedHost
+{
+    using System.Collections.Generic;
+    using System.Diagnostics;
+    using System.IO;
+    using WixBuildTools.TestSupport;
+    using WixToolset.Core.TestPackage;
+
+    public class TestEngine
+    {
+        private static readonly string TestEngineFile = TestData.Get(@"..\Win32\examples\Example.TestEngine\Example.TestEngine.exe");
+
+        public TestEngineResult RunReloadEngine(string bundleFilePath, string tempFolderPath)
+        {
+            return this.RunTestEngine("reload", bundleFilePath, tempFolderPath);
+        }
+
+        public TestEngineResult RunShutdownEngine(string bundleFilePath, string tempFolderPath)
+        {
+            return this.RunTestEngine("shutdown", bundleFilePath, tempFolderPath);
+        }
+
+        private TestEngineResult RunTestEngine(string engineMode, string bundleFilePath, string tempFolderPath)
+        {
+            var baFolderPath = Path.Combine(tempFolderPath, "ba");
+            var extractFolderPath = Path.Combine(tempFolderPath, "extract");
+            var extractResult = BundleExtractor.ExtractBAContainer(null, bundleFilePath, baFolderPath, extractFolderPath);
+            extractResult.AssertSuccess();
+
+            var args = new string[] {
+                engineMode,
+                '"' + bundleFilePath + '"',
+                '"' + extractResult.GetBAFilePath(baFolderPath) + '"',
+            };
+            return RunProcessCaptureOutput(TestEngineFile, args);
+        }
+
+        private static TestEngineResult RunProcessCaptureOutput(string executablePath, string[] arguments = null, string workingFolder = null)
+        {
+            var startInfo = new ProcessStartInfo(executablePath)
+            {
+                Arguments = string.Join(' ', arguments),
+                CreateNoWindow = true,
+                RedirectStandardError = true,
+                RedirectStandardOutput = true,
+                UseShellExecute = false,
+                WorkingDirectory = workingFolder,
+            };
+
+            var exitCode = 0;
+            var output = new List<string>();
+
+            using (var process = Process.Start(startInfo))
+            {
+                process.OutputDataReceived += (s, e) => { if (e.Data != null) { output.Add(e.Data); } };
+                process.ErrorDataReceived += (s, e) => { if (e.Data != null) { output.Add(e.Data); } };
+
+                process.BeginErrorReadLine();
+                process.BeginOutputReadLine();
+
+                process.WaitForExit();
+                exitCode = process.ExitCode;
+            }
+
+            return new TestEngineResult
+            {
+                ExitCode = exitCode,
+                Output = output,
+            };
+        }
+    }
+}
diff --git a/src/ext/Bal/test/WixToolsetTest.ManagedHost/TestEngineResult.cs b/src/ext/Bal/test/WixToolsetTest.ManagedHost/TestEngineResult.cs
new file mode 100644
index 00000000..63f6f7f5
--- /dev/null
+++ b/src/ext/Bal/test/WixToolsetTest.ManagedHost/TestEngineResult.cs
@@ -0,0 +1,12 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace WixToolsetTest.ManagedHost
+{
+    using System.Collections.Generic;
+
+    public class TestEngineResult
+    {
+        public int ExitCode { get; set; }
+        public List<string> Output { get; set; }
+    }
+}
diff --git a/src/ext/Bal/test/WixToolsetTest.ManagedHost/WixToolsetTest.ManagedHost.csproj b/src/ext/Bal/test/WixToolsetTest.ManagedHost/WixToolsetTest.ManagedHost.csproj
new file mode 100644
index 00000000..38c8926c
--- /dev/null
+++ b/src/ext/Bal/test/WixToolsetTest.ManagedHost/WixToolsetTest.ManagedHost.csproj
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\examples\TestEngine\Example.TestEngine.vcxproj" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="WixBuildTools.TestSupport" Version="4.0.*" />
+    <PackageReference Include="WixToolset.Core.Burn" Version="4.0.*" />
+    <PackageReference Include="WixToolset.Core.WindowsInstaller" Version="4.0.*" />
+    <PackageReference Include="WixToolset.Core.TestPackage" Version="4.0.*" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.3.0" />
+    <PackageReference Include="xunit" Version="2.4.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" PrivateAssets="All" />
+  </ItemGroup>
+</Project>
diff --git a/src/ext/Bal/test/examples/Directory.Build.props b/src/ext/Bal/test/examples/Directory.Build.props
new file mode 100644
index 00000000..3d5870a5
--- /dev/null
+++ b/src/ext/Bal/test/examples/Directory.Build.props
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+<Project>
+  <Import Project="..\..\Directory.Build.props" />
+  <Import Project="Wix.Build.props" Condition=" '$(MSBuildProjectExtension)'=='.wixproj' " />
+</Project>
diff --git a/src/ext/Bal/test/examples/Directory.Build.targets b/src/ext/Bal/test/examples/Directory.Build.targets
new file mode 100644
index 00000000..6dcf402b
--- /dev/null
+++ b/src/ext/Bal/test/examples/Directory.Build.targets
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+<Project>
+  <Import Project="..\..\Directory.Build.targets" />
+  <Import Project="Wix.Build.targets" Condition=" '$(MSBuildProjectExtension)'=='.wixproj' " />
+</Project>
diff --git a/src/ext/Bal/test/examples/EarliestCoreBundleFDD/EarliestCoreBundleFDD.wixproj b/src/ext/Bal/test/examples/EarliestCoreBundleFDD/EarliestCoreBundleFDD.wixproj
new file mode 100644
index 00000000..ba75a9ff
--- /dev/null
+++ b/src/ext/Bal/test/examples/EarliestCoreBundleFDD/EarliestCoreBundleFDD.wixproj
@@ -0,0 +1,2 @@
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+<Project Sdk="WixToolset.Sdk" />
diff --git a/src/ext/Bal/test/examples/EarliestCoreBundleFDD/FrameworkDependentBundle.wxs b/src/ext/Bal/test/examples/EarliestCoreBundleFDD/FrameworkDependentBundle.wxs
new file mode 100644
index 00000000..d146845c
--- /dev/null
+++ b/src/ext/Bal/test/examples/EarliestCoreBundleFDD/FrameworkDependentBundle.wxs
@@ -0,0 +1,16 @@
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs" xmlns:bal="http://wixtoolset.org/schemas/v4/wxs/bal">
+    <Bundle Name="FDDEarliestCoreMBA" Version="1.0.0.0" Manufacturer="Example Corporation" UpgradeCode="5CE5B5C7-4B6B-4B95-B297-731F1F956533">
+        <BootstrapperApplication>
+            <Payload SourceFile="publish\Example.EarliestCoreMBA\fdd\Example.EarliestCoreMBA.deps.json" Name="Example.EarliestCoreMBA.deps.json" />
+            <Payload SourceFile="publish\Example.EarliestCoreMBA\fdd\Example.EarliestCoreMBA.dll" Name="Example.EarliestCoreMBA.dll" bal:BAFactoryAssembly="yes" />
+            <Payload SourceFile="publish\Example.EarliestCoreMBA\fdd\Example.EarliestCoreMBA.pdb" Name="Example.EarliestCoreMBA.pdb" />
+            <Payload SourceFile="publish\Example.EarliestCoreMBA\fdd\Example.EarliestCoreMBA.runtimeconfig.json" Name="Example.EarliestCoreMBA.runtimeconfig.json" />
+            <Payload SourceFile="publish\Example.EarliestCoreMBA\fdd\mbanative.dll" Name="mbanative.dll" />
+            <Payload SourceFile="publish\Example.EarliestCoreMBA\fdd\WixToolset.Mba.Core.dll" Name="WixToolset.Mba.Core.dll" />
+            <bal:WixDotNetCoreBootstrapperApplicationHost />
+        </BootstrapperApplication>
+        <Chain>
+            <ExePackage DetectCondition="none" SourceFile="c:\windows\system32\kernel32.dll" bal:PrereqPackage="yes" />
+        </Chain>
+    </Bundle>
+</Wix>
diff --git a/src/ext/Bal/test/examples/EarliestCoreBundleSCD/EarliestCoreBundleSCD.wixproj b/src/ext/Bal/test/examples/EarliestCoreBundleSCD/EarliestCoreBundleSCD.wixproj
new file mode 100644
index 00000000..ebeebff2
--- /dev/null
+++ b/src/ext/Bal/test/examples/EarliestCoreBundleSCD/EarliestCoreBundleSCD.wixproj
@@ -0,0 +1,10 @@
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+<Project Sdk="WixToolset.Sdk">
+    <ItemGroup>
+        <BindInputPaths Include="$(OutputPath)publish\Example.EarliestCoreMBA\scd" />
+        <HarvestDirectory Include="$(OutputPath)publish\Example.EarliestCoreMBA\scd">
+            <DirectoryRefId>publish.Example.EarliestCoreMBA.scd</DirectoryRefId>
+            <Transforms>ba.xslt</Transforms>
+        </HarvestDirectory>
+    </ItemGroup>
+</Project>
diff --git a/src/ext/Bal/test/examples/EarliestCoreBundleSCD/SelfContainedBundle.wxs b/src/ext/Bal/test/examples/EarliestCoreBundleSCD/SelfContainedBundle.wxs
new file mode 100644
index 00000000..4d872317
--- /dev/null
+++ b/src/ext/Bal/test/examples/EarliestCoreBundleSCD/SelfContainedBundle.wxs
@@ -0,0 +1,11 @@
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs" xmlns:bal="http://wixtoolset.org/schemas/v4/wxs/bal">
+    <Bundle Name="SCDEarliestCoreMBA" Version="1.0.0.0" Manufacturer="Example Corporation" UpgradeCode="5CE5B5C7-4B6B-4B95-B297-731F1F956533">
+        <BootstrapperApplication>
+            <bal:WixDotNetCoreBootstrapperApplicationHost SelfContainedDeployment="yes" />
+            <PayloadGroupRef Id="publish.Example.EarliestCoreMBA.scd" />
+        </BootstrapperApplication>
+        <Chain>
+            <ExePackage DetectCondition="none" SourceFile="c:\windows\system32\kernel32.dll" PerMachine="yes" />
+        </Chain>
+    </Bundle>
+</Wix>
diff --git a/src/ext/Bal/test/examples/EarliestCoreBundleSCD/ba.xslt b/src/ext/Bal/test/examples/EarliestCoreBundleSCD/ba.xslt
new file mode 100644
index 00000000..06b84256
--- /dev/null
+++ b/src/ext/Bal/test/examples/EarliestCoreBundleSCD/ba.xslt
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+    xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl"
+    xmlns:wix="http://wixtoolset.org/schemas/v4/wxs"
+>
+    <xsl:output method="xml" indent="yes"/>
+
+    <xsl:template match="@* | node()">
+        <xsl:copy>
+            <xsl:apply-templates select="@* | node()"/>
+        </xsl:copy>
+    </xsl:template>
+
+    <xsl:template match="wix:Payload[@SourceFile='SourceDir\Example.EarliestCoreMBA.dll']" >
+        <xsl:copy>
+            <xsl:attribute name="BAFactoryAssembly" namespace="http://wixtoolset.org/schemas/v4/wxs/bal">yes</xsl:attribute>
+            <xsl:apply-templates select="@* | node()"/>
+        </xsl:copy>
+    </xsl:template>
+</xsl:stylesheet>
diff --git a/src/ext/Bal/test/examples/EarliestCoreBundleTrimmedSCD/EarliestCoreBundleTrimmedSCD.wixproj b/src/ext/Bal/test/examples/EarliestCoreBundleTrimmedSCD/EarliestCoreBundleTrimmedSCD.wixproj
new file mode 100644
index 00000000..a6b56460
--- /dev/null
+++ b/src/ext/Bal/test/examples/EarliestCoreBundleTrimmedSCD/EarliestCoreBundleTrimmedSCD.wixproj
@@ -0,0 +1,10 @@
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+<Project Sdk="WixToolset.Sdk">
+    <ItemGroup>
+        <BindInputPaths Include="$(OutputPath)publish\Example.EarliestCoreMBA\trimmedscd" />
+        <HarvestDirectory Include="$(OutputPath)publish\Example.EarliestCoreMBA\trimmedscd">
+            <DirectoryRefId>publish.Example.EarliestCoreMBA.trimmedscd</DirectoryRefId>
+            <Transforms>ba.xslt</Transforms>
+        </HarvestDirectory>
+    </ItemGroup>
+</Project>
diff --git a/src/ext/Bal/test/examples/EarliestCoreBundleTrimmedSCD/TrimmedSelfContainedBundle.wxs b/src/ext/Bal/test/examples/EarliestCoreBundleTrimmedSCD/TrimmedSelfContainedBundle.wxs
new file mode 100644
index 00000000..ba7dce25
--- /dev/null
+++ b/src/ext/Bal/test/examples/EarliestCoreBundleTrimmedSCD/TrimmedSelfContainedBundle.wxs
@@ -0,0 +1,11 @@
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs" xmlns:bal="http://wixtoolset.org/schemas/v4/wxs/bal">
+    <Bundle Name="TrimmedSCDEarliestCoreMBA" Version="1.0.0.0" Manufacturer="Example Corporation" UpgradeCode="5CE5B5C7-4B6B-4B95-B297-731F1F956533">
+        <BootstrapperApplication>
+            <bal:WixDotNetCoreBootstrapperApplicationHost SelfContainedDeployment="yes" />
+            <PayloadGroupRef Id="publish.Example.EarliestCoreMBA.trimmedscd" />
+        </BootstrapperApplication>
+        <Chain>
+            <ExePackage DetectCondition="none" SourceFile="c:\windows\system32\kernel32.dll" PerMachine="yes" />
+        </Chain>
+    </Bundle>
+</Wix>
diff --git a/src/ext/Bal/test/examples/EarliestCoreBundleTrimmedSCD/ba.xslt b/src/ext/Bal/test/examples/EarliestCoreBundleTrimmedSCD/ba.xslt
new file mode 100644
index 00000000..06b84256
--- /dev/null
+++ b/src/ext/Bal/test/examples/EarliestCoreBundleTrimmedSCD/ba.xslt
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+    xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl"
+    xmlns:wix="http://wixtoolset.org/schemas/v4/wxs"
+>
+    <xsl:output method="xml" indent="yes"/>
+
+    <xsl:template match="@* | node()">
+        <xsl:copy>
+            <xsl:apply-templates select="@* | node()"/>
+        </xsl:copy>
+    </xsl:template>
+
+    <xsl:template match="wix:Payload[@SourceFile='SourceDir\Example.EarliestCoreMBA.dll']" >
+        <xsl:copy>
+            <xsl:attribute name="BAFactoryAssembly" namespace="http://wixtoolset.org/schemas/v4/wxs/bal">yes</xsl:attribute>
+            <xsl:apply-templates select="@* | node()"/>
+        </xsl:copy>
+    </xsl:template>
+</xsl:stylesheet>
diff --git a/src/ext/Bal/test/examples/EarliestCoreMBA/EarliestCoreBA.cs b/src/ext/Bal/test/examples/EarliestCoreMBA/EarliestCoreBA.cs
new file mode 100644
index 00000000..c9291a7f
--- /dev/null
+++ b/src/ext/Bal/test/examples/EarliestCoreMBA/EarliestCoreBA.cs
@@ -0,0 +1,34 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace Example.EarliestCoreMBA
+{
+    using WixToolset.Mba.Core;
+
+    public class EarliestCoreBA : BootstrapperApplication
+    {
+        public EarliestCoreBA(IEngine engine)
+            : base(engine)
+        {
+
+        }
+
+        protected override void Run()
+        {
+        }
+
+        protected override void OnStartup(StartupEventArgs args)
+        {
+            base.OnStartup(args);
+
+            this.engine.Log(LogLevel.Standard, nameof(EarliestCoreBA));
+        }
+
+        protected override void OnShutdown(ShutdownEventArgs args)
+        {
+            base.OnShutdown(args);
+
+            var message = "Shutdown," + args.Action.ToString() + "," + args.HResult.ToString();
+            this.engine.Log(LogLevel.Standard, message);
+        }
+    }
+}
diff --git a/src/ext/Bal/test/examples/EarliestCoreMBA/EarliestCoreBAFactory.cs b/src/ext/Bal/test/examples/EarliestCoreMBA/EarliestCoreBAFactory.cs
new file mode 100644
index 00000000..672e17ee
--- /dev/null
+++ b/src/ext/Bal/test/examples/EarliestCoreMBA/EarliestCoreBAFactory.cs
@@ -0,0 +1,22 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+[assembly: WixToolset.Mba.Core.BootstrapperApplicationFactory(typeof(Example.EarliestCoreMBA.EarliestCoreBAFactory))]
+namespace Example.EarliestCoreMBA
+{
+    using WixToolset.Mba.Core;
+
+    public class EarliestCoreBAFactory : BaseBootstrapperApplicationFactory
+    {
+        private static int loadCount = 0;
+
+        protected override IBootstrapperApplication Create(IEngine engine, IBootstrapperCommand bootstrapperCommand)
+        {
+            if (loadCount > 0)
+            {
+                engine.Log(LogLevel.Standard, $"Reloaded {loadCount} time(s)");
+            }
+            ++loadCount;
+            return new EarliestCoreBA(engine);
+        }
+    }
+}
diff --git a/src/ext/Bal/test/examples/EarliestCoreMBA/Example.EarliestCoreMBA.csproj b/src/ext/Bal/test/examples/EarliestCoreMBA/Example.EarliestCoreMBA.csproj
new file mode 100644
index 00000000..cb66c138
--- /dev/null
+++ b/src/ext/Bal/test/examples/EarliestCoreMBA/Example.EarliestCoreMBA.csproj
@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <RuntimeIdentifiers>win-x86;win-x64</RuntimeIdentifiers>
+    <EnableDynamicLoading>true</EnableDynamicLoading>
+    <Description>Earliest .NET Core MBA</Description>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <TrimmerRootAssembly Include="System.Runtime.Loader" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Nerdbank.GitVersioning" Version="3.3.37" PrivateAssets="all" />
+    <PackageReference Include="WixToolset.Mba.Core" Version="4.0.*" />
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/ext/Bal/test/examples/FullFramework2Bundle/Bundle.wxs b/src/ext/Bal/test/examples/FullFramework2Bundle/Bundle.wxs
new file mode 100644
index 00000000..f0af975c
--- /dev/null
+++ b/src/ext/Bal/test/examples/FullFramework2Bundle/Bundle.wxs
@@ -0,0 +1,14 @@
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs" xmlns:bal="http://wixtoolset.org/schemas/v4/wxs/bal">
+    <Bundle Name="FullFramework2MBA" Version="1.0.0.0" Manufacturer="Example Corporation" UpgradeCode="5CE5B5C7-4B6B-4B95-B297-731F1F956533">
+        <BootstrapperApplication>
+            <Payload SourceFile="Example.FullFramework2MBA\net20\win-x86\Example.FullFramework2MBA.dll" />
+            <Payload SourceFile="Example.FullFramework2MBA\net20\win-x86\mbanative.dll" />
+            <Payload SourceFile="Example.FullFramework2MBA\net20\win-x86\WixToolset.Mba.Core.dll" />
+            <Payload SourceFile="Example.FullFramework2MBA\net20\win-x86\WixToolset.Mba.Host.config" />
+            <bal:WixManagedBootstrapperApplicationHost />
+        </BootstrapperApplication>
+        <Chain>
+            <ExePackage DetectCondition="none" SourceFile="c:\windows\system32\kernel32.dll" bal:PrereqPackage="yes" />
+        </Chain>
+    </Bundle>
+</Wix>
diff --git a/src/ext/Bal/test/examples/FullFramework2Bundle/FullFramework2Bundle.wixproj b/src/ext/Bal/test/examples/FullFramework2Bundle/FullFramework2Bundle.wixproj
new file mode 100644
index 00000000..ba75a9ff
--- /dev/null
+++ b/src/ext/Bal/test/examples/FullFramework2Bundle/FullFramework2Bundle.wixproj
@@ -0,0 +1,2 @@
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+<Project Sdk="WixToolset.Sdk" />
diff --git a/src/ext/Bal/test/examples/FullFramework2MBA/Example.FullFramework2MBA.csproj b/src/ext/Bal/test/examples/FullFramework2MBA/Example.FullFramework2MBA.csproj
new file mode 100644
index 00000000..21079ed1
--- /dev/null
+++ b/src/ext/Bal/test/examples/FullFramework2MBA/Example.FullFramework2MBA.csproj
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net20</TargetFramework>
+    <AssemblyName>Example.FullFramework2MBA</AssemblyName>
+    <RootNamespace>Example.FullFramework2MBA</RootNamespace>
+    <DebugType>embedded</DebugType>
+    <RuntimeIdentifier>win-x86</RuntimeIdentifier>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Content Include="WixToolset.Mba.Host.config" CopyToOutputDirectory="PreserveNewest" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="WixToolset.Mba.Core" Version="4.0.*" />
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/ext/Bal/test/examples/FullFramework2MBA/FullFramework2BA.cs b/src/ext/Bal/test/examples/FullFramework2MBA/FullFramework2BA.cs
new file mode 100644
index 00000000..32cd19c8
--- /dev/null
+++ b/src/ext/Bal/test/examples/FullFramework2MBA/FullFramework2BA.cs
@@ -0,0 +1,34 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace Example.FullFramework2MBA
+{
+    using WixToolset.Mba.Core;
+
+    public class FullFramework2BA : BootstrapperApplication
+    {
+        public FullFramework2BA(IEngine engine)
+            : base(engine)
+        {
+
+        }
+
+        protected override void Run()
+        {
+        }
+
+        protected override void OnStartup(StartupEventArgs args)
+        {
+            base.OnStartup(args);
+
+            this.engine.Log(LogLevel.Standard, nameof(FullFramework2BA));
+        }
+
+        protected override void OnShutdown(ShutdownEventArgs args)
+        {
+            base.OnShutdown(args);
+
+            var message = "Shutdown," + args.Action.ToString() + "," + args.HResult.ToString();
+            this.engine.Log(LogLevel.Standard, message);
+        }
+    }
+}
diff --git a/src/ext/Bal/test/examples/FullFramework2MBA/FullFramework2BAFactory.cs b/src/ext/Bal/test/examples/FullFramework2MBA/FullFramework2BAFactory.cs
new file mode 100644
index 00000000..647c2040
--- /dev/null
+++ b/src/ext/Bal/test/examples/FullFramework2MBA/FullFramework2BAFactory.cs
@@ -0,0 +1,22 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+[assembly: WixToolset.Mba.Core.BootstrapperApplicationFactory(typeof(Example.FullFramework2MBA.FullFramework2BAFactory))]
+namespace Example.FullFramework2MBA
+{
+    using WixToolset.Mba.Core;
+
+    public class FullFramework2BAFactory : BaseBootstrapperApplicationFactory
+    {
+        private static int loadCount = 0;
+
+        protected override IBootstrapperApplication Create(IEngine engine, IBootstrapperCommand bootstrapperCommand)
+        {
+            if (loadCount > 0)
+            {
+                engine.Log(LogLevel.Standard, $"Reloaded {loadCount} time(s)");
+            }
+            ++loadCount;
+            return new FullFramework2BA(engine);
+        }
+    }
+}
diff --git a/src/ext/Bal/test/examples/FullFramework2MBA/WixToolset.Mba.Host.config b/src/ext/Bal/test/examples/FullFramework2MBA/WixToolset.Mba.Host.config
new file mode 100644
index 00000000..be450a4f
--- /dev/null
+++ b/src/ext/Bal/test/examples/FullFramework2MBA/WixToolset.Mba.Host.config
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+
+
+<configuration>
+    <configSections>
+        <sectionGroup name="wix.bootstrapper" type="WixToolset.Mba.Host.BootstrapperSectionGroup, WixToolset.Mba.Host">
+            <section name="host" type="WixToolset.Mba.Host.HostSection, WixToolset.Mba.Host" />
+        </sectionGroup>
+    </configSections>
+    <startup>
+        <supportedRuntime version="v2.0.50727" />
+    </startup>
+    <wix.bootstrapper>
+
+        <host assemblyName="Example.FullFramework2MBA">
+            <supportedFramework version="v3.5" />
+        </host>
+    </wix.bootstrapper>
+</configuration>
diff --git a/src/ext/Bal/test/examples/FullFramework4Bundle/Bundle.wxs b/src/ext/Bal/test/examples/FullFramework4Bundle/Bundle.wxs
new file mode 100644
index 00000000..7b7cbf57
--- /dev/null
+++ b/src/ext/Bal/test/examples/FullFramework4Bundle/Bundle.wxs
@@ -0,0 +1,14 @@
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs" xmlns:bal="http://wixtoolset.org/schemas/v4/wxs/bal">
+    <Bundle Name="FullFramework4MBA" Version="1.0.0.0" Manufacturer="Example Corporation" UpgradeCode="E08068E0-4FBA-439D-A1C8-4CD1FE27093F">
+        <BootstrapperApplication>
+            <Payload SourceFile="Example.FullFramework4MBA\net48\win-x86\Example.FullFramework4MBA.dll" />
+            <Payload SourceFile="Example.FullFramework4MBA\net48\win-x86\mbanative.dll" />
+            <Payload SourceFile="Example.FullFramework4MBA\net48\win-x86\WixToolset.Mba.Core.dll" />
+            <Payload SourceFile="Example.FullFramework4MBA\net48\win-x86\WixToolset.Mba.Host.config" />
+            <bal:WixManagedBootstrapperApplicationHost />
+        </BootstrapperApplication>
+        <Chain>
+            <ExePackage DetectCondition="none" SourceFile="c:\windows\system32\kernel32.dll" bal:PrereqPackage="yes" />
+        </Chain>
+    </Bundle>
+</Wix>
diff --git a/src/ext/Bal/test/examples/FullFramework4Bundle/FullFramework4Bundle.wixproj b/src/ext/Bal/test/examples/FullFramework4Bundle/FullFramework4Bundle.wixproj
new file mode 100644
index 00000000..ba75a9ff
--- /dev/null
+++ b/src/ext/Bal/test/examples/FullFramework4Bundle/FullFramework4Bundle.wixproj
@@ -0,0 +1,2 @@
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+<Project Sdk="WixToolset.Sdk" />
diff --git a/src/ext/Bal/test/examples/FullFramework4MBA/Example.FullFramework4MBA.csproj b/src/ext/Bal/test/examples/FullFramework4MBA/Example.FullFramework4MBA.csproj
new file mode 100644
index 00000000..a05e7888
--- /dev/null
+++ b/src/ext/Bal/test/examples/FullFramework4MBA/Example.FullFramework4MBA.csproj
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net48</TargetFramework>
+    <Description>Full Framework v4 MBA</Description>
+    <RuntimeIdentifier>win-x86</RuntimeIdentifier>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Nerdbank.GitVersioning" Version="3.3.37" PrivateAssets="all" />
+    <PackageReference Include="WixToolset.Mba.Core" Version="4.0.*" PrivateAssets="All" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Content Include="WixToolset.Mba.Host.config" CopyToOutputDirectory="PreserveNewest" />
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/ext/Bal/test/examples/FullFramework4MBA/FullFramework4BA.cs b/src/ext/Bal/test/examples/FullFramework4MBA/FullFramework4BA.cs
new file mode 100644
index 00000000..8ee3bd19
--- /dev/null
+++ b/src/ext/Bal/test/examples/FullFramework4MBA/FullFramework4BA.cs
@@ -0,0 +1,34 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace Example.FullFramework4MBA
+{
+    using WixToolset.Mba.Core;
+
+    public class FullFramework4BA : BootstrapperApplication
+    {
+        public FullFramework4BA(IEngine engine)
+            : base(engine)
+        {
+
+        }
+
+        protected override void Run()
+        {
+        }
+
+        protected override void OnStartup(StartupEventArgs args)
+        {
+            base.OnStartup(args);
+
+            this.engine.Log(LogLevel.Standard, nameof(FullFramework4BA));
+        }
+
+        protected override void OnShutdown(ShutdownEventArgs args)
+        {
+            base.OnShutdown(args);
+
+            var message = "Shutdown," + args.Action.ToString() + "," + args.HResult.ToString();
+            this.engine.Log(LogLevel.Standard, message);
+        }
+    }
+}
diff --git a/src/ext/Bal/test/examples/FullFramework4MBA/FullFramework4BAFactory.cs b/src/ext/Bal/test/examples/FullFramework4MBA/FullFramework4BAFactory.cs
new file mode 100644
index 00000000..6a571a54
--- /dev/null
+++ b/src/ext/Bal/test/examples/FullFramework4MBA/FullFramework4BAFactory.cs
@@ -0,0 +1,22 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+[assembly: WixToolset.Mba.Core.BootstrapperApplicationFactory(typeof(Example.FullFramework4MBA.FullFramework4BAFactory))]
+namespace Example.FullFramework4MBA
+{
+    using WixToolset.Mba.Core;
+
+    public class FullFramework4BAFactory : BaseBootstrapperApplicationFactory
+    {
+        private static int loadCount = 0;
+
+        protected override IBootstrapperApplication Create(IEngine engine, IBootstrapperCommand bootstrapperCommand)
+        {
+            if (loadCount > 0)
+            {
+                engine.Log(LogLevel.Standard, $"Reloaded {loadCount} time(s)");
+            }
+            ++loadCount;
+            return new FullFramework4BA(engine);
+        }
+    }
+}
diff --git a/src/ext/Bal/test/examples/FullFramework4MBA/WixToolset.Mba.Host.config b/src/ext/Bal/test/examples/FullFramework4MBA/WixToolset.Mba.Host.config
new file mode 100644
index 00000000..96678cda
--- /dev/null
+++ b/src/ext/Bal/test/examples/FullFramework4MBA/WixToolset.Mba.Host.config
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+
+
+<configuration>
+    <configSections>
+        <sectionGroup name="wix.bootstrapper" type="WixToolset.Mba.Host.BootstrapperSectionGroup, WixToolset.Mba.Host">
+            <section name="host" type="WixToolset.Mba.Host.HostSection, WixToolset.Mba.Host" />
+        </sectionGroup>
+    </configSections>
+    <startup>
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.8" />
+    </startup>
+    <wix.bootstrapper>
+        <host assemblyName="Example.FullFramework4MBA" />
+    </wix.bootstrapper>
+</configuration>
diff --git a/src/ext/Bal/test/examples/LatestCoreBundleFDD/FrameworkDependentBundle.wxs b/src/ext/Bal/test/examples/LatestCoreBundleFDD/FrameworkDependentBundle.wxs
new file mode 100644
index 00000000..d5b543e8
--- /dev/null
+++ b/src/ext/Bal/test/examples/LatestCoreBundleFDD/FrameworkDependentBundle.wxs
@@ -0,0 +1,16 @@
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs" xmlns:bal="http://wixtoolset.org/schemas/v4/wxs/bal">
+    <Bundle Name="FDDLatestCoreMBA" Version="1.0.0.0" Manufacturer="Example Corporation" UpgradeCode="5CE5B5C7-4B6B-4B95-B297-731F1F956533">
+        <BootstrapperApplication>
+            <Payload SourceFile="publish\Example.LatestCoreMBA\fdd\Example.LatestCoreMBA.deps.json" Name="Example.LatestCoreMBA.deps.json" />
+            <Payload SourceFile="publish\Example.LatestCoreMBA\fdd\Example.LatestCoreMBA.dll" Name="Example.LatestCoreMBA.dll" bal:BAFactoryAssembly="yes" />
+            <Payload SourceFile="publish\Example.LatestCoreMBA\fdd\Example.LatestCoreMBA.pdb" Name="Example.LatestCoreMBA.pdb" />
+            <Payload SourceFile="publish\Example.LatestCoreMBA\fdd\Example.LatestCoreMBA.runtimeconfig.json" Name="Example.LatestCoreMBA.runtimeconfig.json" />
+            <Payload SourceFile="publish\Example.LatestCoreMBA\fdd\mbanative.dll" Name="mbanative.dll" />
+            <Payload SourceFile="publish\Example.LatestCoreMBA\fdd\WixToolset.Mba.Core.dll" Name="WixToolset.Mba.Core.dll" />
+            <bal:WixDotNetCoreBootstrapperApplicationHost />
+        </BootstrapperApplication>
+        <Chain>
+            <ExePackage DetectCondition="none" SourceFile="c:\windows\system32\kernel32.dll" bal:PrereqPackage="yes" />
+        </Chain>
+    </Bundle>
+</Wix>
diff --git a/src/ext/Bal/test/examples/LatestCoreBundleFDD/LatestCoreBundleFDD.wixproj b/src/ext/Bal/test/examples/LatestCoreBundleFDD/LatestCoreBundleFDD.wixproj
new file mode 100644
index 00000000..ba75a9ff
--- /dev/null
+++ b/src/ext/Bal/test/examples/LatestCoreBundleFDD/LatestCoreBundleFDD.wixproj
@@ -0,0 +1,2 @@
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+<Project Sdk="WixToolset.Sdk" />
diff --git a/src/ext/Bal/test/examples/LatestCoreBundleSCD/LatestCoreBundleSCD.wixproj b/src/ext/Bal/test/examples/LatestCoreBundleSCD/LatestCoreBundleSCD.wixproj
new file mode 100644
index 00000000..30a860ab
--- /dev/null
+++ b/src/ext/Bal/test/examples/LatestCoreBundleSCD/LatestCoreBundleSCD.wixproj
@@ -0,0 +1,10 @@
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+<Project Sdk="WixToolset.Sdk">
+    <ItemGroup>
+        <BindInputPaths Include="$(OutputPath)publish\Example.LatestCoreMBA\scd" />
+        <HarvestDirectory Include="$(OutputPath)publish\Example.LatestCoreMBA\scd">
+            <DirectoryRefId>publish.Example.LatestCoreMBA.scd</DirectoryRefId>
+            <Transforms>ba.xslt</Transforms>
+        </HarvestDirectory>
+    </ItemGroup>
+</Project>
diff --git a/src/ext/Bal/test/examples/LatestCoreBundleSCD/SelfContainedBundle.wxs b/src/ext/Bal/test/examples/LatestCoreBundleSCD/SelfContainedBundle.wxs
new file mode 100644
index 00000000..bedf0326
--- /dev/null
+++ b/src/ext/Bal/test/examples/LatestCoreBundleSCD/SelfContainedBundle.wxs
@@ -0,0 +1,11 @@
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs" xmlns:bal="http://wixtoolset.org/schemas/v4/wxs/bal">
+    <Bundle Name="SCDLatestCoreMBA" Version="1.0.0.0" Manufacturer="Example Corporation" UpgradeCode="5CE5B5C7-4B6B-4B95-B297-731F1F956533">
+        <BootstrapperApplication>
+            <bal:WixDotNetCoreBootstrapperApplicationHost SelfContainedDeployment="yes" />
+            <PayloadGroupRef Id="publish.Example.LatestCoreMBA.scd" />
+        </BootstrapperApplication>
+        <Chain>
+            <ExePackage DetectCondition="none" SourceFile="c:\windows\system32\kernel32.dll" PerMachine="yes" />
+        </Chain>
+    </Bundle>
+</Wix>
diff --git a/src/ext/Bal/test/examples/LatestCoreBundleSCD/ba.xslt b/src/ext/Bal/test/examples/LatestCoreBundleSCD/ba.xslt
new file mode 100644
index 00000000..acc7474c
--- /dev/null
+++ b/src/ext/Bal/test/examples/LatestCoreBundleSCD/ba.xslt
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+    xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl"
+    xmlns:wix="http://wixtoolset.org/schemas/v4/wxs"
+>
+    <xsl:output method="xml" indent="yes"/>
+
+    <xsl:template match="@* | node()">
+        <xsl:copy>
+            <xsl:apply-templates select="@* | node()"/>
+        </xsl:copy>
+    </xsl:template>
+
+    <xsl:template match="wix:Payload[@SourceFile='SourceDir\Example.LatestCoreMBA.dll']" >
+        <xsl:copy>
+            <xsl:attribute name="BAFactoryAssembly" namespace="http://wixtoolset.org/schemas/v4/wxs/bal">yes</xsl:attribute>
+            <xsl:apply-templates select="@* | node()"/>
+        </xsl:copy>
+    </xsl:template>
+</xsl:stylesheet>
diff --git a/src/ext/Bal/test/examples/LatestCoreBundleTrimmedSCD/LatestCoreBundleTrimmedSCD.wixproj b/src/ext/Bal/test/examples/LatestCoreBundleTrimmedSCD/LatestCoreBundleTrimmedSCD.wixproj
new file mode 100644
index 00000000..5ce89b64
--- /dev/null
+++ b/src/ext/Bal/test/examples/LatestCoreBundleTrimmedSCD/LatestCoreBundleTrimmedSCD.wixproj
@@ -0,0 +1,10 @@
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+<Project Sdk="WixToolset.Sdk">
+    <ItemGroup>
+        <BindInputPaths Include="$(OutputPath)publish\Example.LatestCoreMBA\trimmedscd" />
+        <HarvestDirectory Include="$(OutputPath)publish\Example.LatestCoreMBA\trimmedscd">
+            <DirectoryRefId>publish.Example.LatestCoreMBA.trimmedscd</DirectoryRefId>
+            <Transforms>ba.xslt</Transforms>
+        </HarvestDirectory>
+    </ItemGroup>
+</Project>
diff --git a/src/ext/Bal/test/examples/LatestCoreBundleTrimmedSCD/TrimmedSelfContainedBundle.wxs b/src/ext/Bal/test/examples/LatestCoreBundleTrimmedSCD/TrimmedSelfContainedBundle.wxs
new file mode 100644
index 00000000..6059f8c1
--- /dev/null
+++ b/src/ext/Bal/test/examples/LatestCoreBundleTrimmedSCD/TrimmedSelfContainedBundle.wxs
@@ -0,0 +1,11 @@
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs" xmlns:bal="http://wixtoolset.org/schemas/v4/wxs/bal">
+    <Bundle Name="TrimmedSCDLatestCoreMBA" Version="1.0.0.0" Manufacturer="Example Corporation" UpgradeCode="5CE5B5C7-4B6B-4B95-B297-731F1F956533">
+        <BootstrapperApplication>
+            <bal:WixDotNetCoreBootstrapperApplicationHost SelfContainedDeployment="yes" />
+            <PayloadGroupRef Id="publish.Example.LatestCoreMBA.trimmedscd" />
+        </BootstrapperApplication>
+        <Chain>
+            <ExePackage DetectCondition="none" SourceFile="c:\windows\system32\kernel32.dll" PerMachine="yes" />
+        </Chain>
+    </Bundle>
+</Wix>
diff --git a/src/ext/Bal/test/examples/LatestCoreBundleTrimmedSCD/ba.xslt b/src/ext/Bal/test/examples/LatestCoreBundleTrimmedSCD/ba.xslt
new file mode 100644
index 00000000..acc7474c
--- /dev/null
+++ b/src/ext/Bal/test/examples/LatestCoreBundleTrimmedSCD/ba.xslt
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+    xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl"
+    xmlns:wix="http://wixtoolset.org/schemas/v4/wxs"
+>
+    <xsl:output method="xml" indent="yes"/>
+
+    <xsl:template match="@* | node()">
+        <xsl:copy>
+            <xsl:apply-templates select="@* | node()"/>
+        </xsl:copy>
+    </xsl:template>
+
+    <xsl:template match="wix:Payload[@SourceFile='SourceDir\Example.LatestCoreMBA.dll']" >
+        <xsl:copy>
+            <xsl:attribute name="BAFactoryAssembly" namespace="http://wixtoolset.org/schemas/v4/wxs/bal">yes</xsl:attribute>
+            <xsl:apply-templates select="@* | node()"/>
+        </xsl:copy>
+    </xsl:template>
+</xsl:stylesheet>
diff --git a/src/ext/Bal/test/examples/LatestCoreMBA/Example.LatestCoreMBA.csproj b/src/ext/Bal/test/examples/LatestCoreMBA/Example.LatestCoreMBA.csproj
new file mode 100644
index 00000000..9f3f02d9
--- /dev/null
+++ b/src/ext/Bal/test/examples/LatestCoreMBA/Example.LatestCoreMBA.csproj
@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net5.0</TargetFramework>
+    <RuntimeIdentifiers>win-x86;win-x64</RuntimeIdentifiers>
+    <EnableDynamicLoading>true</EnableDynamicLoading>
+    <Description>Latest .NET Core MBA</Description>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <TrimmerRootAssembly Include="System.Diagnostics.Tools" />
+    <TrimmerRootAssembly Include="System.Runtime" />
+    <TrimmerRootAssembly Include="System.Runtime.InteropServices" />
+    <TrimmerRootAssembly Include="System.Runtime.Loader" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Nerdbank.GitVersioning" Version="3.3.37" PrivateAssets="all" />
+    <PackageReference Include="WixToolset.Mba.Core" Version="4.0.*" />
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/ext/Bal/test/examples/LatestCoreMBA/LatestCoreBA.cs b/src/ext/Bal/test/examples/LatestCoreMBA/LatestCoreBA.cs
new file mode 100644
index 00000000..50386a87
--- /dev/null
+++ b/src/ext/Bal/test/examples/LatestCoreMBA/LatestCoreBA.cs
@@ -0,0 +1,33 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace Example.LatestCoreMBA
+{
+    using WixToolset.Mba.Core;
+
+    public class LatestCoreBA : BootstrapperApplication
+    {
+        public LatestCoreBA(IEngine engine)
+            : base(engine)
+        {
+        }
+
+        protected override void Run()
+        {
+        }
+
+        protected override void OnStartup(StartupEventArgs args)
+        {
+            base.OnStartup(args);
+
+            this.engine.Log(LogLevel.Standard, nameof(LatestCoreBA));
+        }
+
+        protected override void OnShutdown(ShutdownEventArgs args)
+        {
+            base.OnShutdown(args);
+
+            var message = "Shutdown," + args.Action.ToString() + "," + args.HResult.ToString();
+            this.engine.Log(LogLevel.Standard, message);
+        }
+    }
+}
diff --git a/src/ext/Bal/test/examples/LatestCoreMBA/LatestCoreBAFactory.cs b/src/ext/Bal/test/examples/LatestCoreMBA/LatestCoreBAFactory.cs
new file mode 100644
index 00000000..fff3b5c5
--- /dev/null
+++ b/src/ext/Bal/test/examples/LatestCoreMBA/LatestCoreBAFactory.cs
@@ -0,0 +1,22 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+[assembly: WixToolset.Mba.Core.BootstrapperApplicationFactory(typeof(Example.LatestCoreMBA.LatestCoreBAFactory))]
+namespace Example.LatestCoreMBA
+{
+    using WixToolset.Mba.Core;
+
+    public class LatestCoreBAFactory : BaseBootstrapperApplicationFactory
+    {
+        private static int loadCount = 0;
+
+        protected override IBootstrapperApplication Create(IEngine engine, IBootstrapperCommand bootstrapperCommand)
+        {
+            if (loadCount > 0)
+            {
+                engine.Log(LogLevel.Standard, $"Reloaded {loadCount} time(s)");
+            }
+            ++loadCount;
+            return new LatestCoreBA(engine);
+        }
+    }
+}
diff --git a/src/ext/Bal/test/examples/TestEngine/Example.TestEngine.vcxproj b/src/ext/Bal/test/examples/TestEngine/Example.TestEngine.vcxproj
new file mode 100644
index 00000000..99eb917e
--- /dev/null
+++ b/src/ext/Bal/test/examples/TestEngine/Example.TestEngine.vcxproj
@@ -0,0 +1,83 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="..\..\..\..\packages\WixToolset.BalUtil.4.0.58\build\WixToolset.BalUtil.props" Condition="Exists('..\..\..\..\packages\WixToolset.BalUtil.4.0.58\build\WixToolset.BalUtil.props')" />
+  <Import Project="..\..\..\..\packages\WixToolset.BootstrapperCore.Native.4.0.141\build\WixToolset.BootstrapperCore.Native.props" Condition="Exists('..\..\..\..\packages\WixToolset.BootstrapperCore.Native.4.0.141\build\WixToolset.BootstrapperCore.Native.props')" />
+  <Import Project="..\..\..\..\packages\WixToolset.DUtil.4.0.72\build\WixToolset.DUtil.props" Condition="Exists('..\..\..\..\packages\WixToolset.DUtil.4.0.72\build\WixToolset.DUtil.props')" />
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|ARM64">
+      <Configuration>Debug</Configuration>
+      <Platform>ARM64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|ARM64">
+      <Configuration>Release</Configuration>
+      <Platform>ARM64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{3D44B67D-A475-49BA-8310-E39F6C117CC9}</ProjectGuid>
+    <ConfigurationType>Application</ConfigurationType>
+    <ProjectSubSystem>Console</ProjectSubSystem>
+    <TargetName>Example.TestEngine</TargetName>
+    <PlatformToolset>v142</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+    <Import Project="..\..\..\..\packages\Nerdbank.GitVersioning.3.3.37\build\Nerdbank.GitVersioning.targets" Condition="Exists('..\..\..\..\packages\Nerdbank.GitVersioning.3.3.37\build\Nerdbank.GitVersioning.targets')" />
+  </ImportGroup>
+  <PropertyGroup>
+    <ProjectAdditionalLinkLibraries>
+    </ProjectAdditionalLinkLibraries>
+  </PropertyGroup>
+  <ItemGroup>
+    <ClCompile Include="precomp.cpp">
+      <PrecompiledHeader>Create</PrecompiledHeader>
+    </ClCompile>
+    <ClCompile Include="ReloadEngine.cpp" />
+    <ClCompile Include="ShutdownEngine.cpp" />
+    <ClCompile Include="ExampleTestEngine.cpp" />
+    <ClCompile Include="TestEngine.cpp" />
+    <ClCompile Include="WaitForQuitEngine.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="precomp.h" />
+    <ClInclude Include="ReloadEngine.h" />
+    <ClInclude Include="ShutdownEngine.h" />
+    <ClInclude Include="TestEngine.h" />
+    <ClInclude Include="WaitForQuitEngine.h" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('..\..\..\..\packages\Nerdbank.GitVersioning.3.3.37\build\Nerdbank.GitVersioning.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\..\packages\Nerdbank.GitVersioning.3.3.37\build\Nerdbank.GitVersioning.targets'))" />
+    <Error Condition="!Exists('..\..\..\..\packages\WixToolset.BalUtil.4.0.58\build\WixToolset.BalUtil.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\..\packages\WixToolset.BalUtil.4.0.58\build\WixToolset.BalUtil.props'))" />
+    <Error Condition="!Exists('..\..\..\..\packages\WixToolset.BootstrapperCore.Native.4.0.141\build\WixToolset.BootstrapperCore.Native.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\..\packages\WixToolset.BootstrapperCore.Native.4.0.141\build\WixToolset.BootstrapperCore.Native.props'))" />
+    <Error Condition="!Exists('..\..\..\..\packages\WixToolset.DUtil.4.0.72\build\WixToolset.DUtil.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\..\..\packages\WixToolset.DUtil.4.0.72\build\WixToolset.DUtil.props'))" />
+  </Target>
+</Project>
\ No newline at end of file
diff --git a/src/ext/Bal/test/examples/TestEngine/ExampleTestEngine.cpp b/src/ext/Bal/test/examples/TestEngine/ExampleTestEngine.cpp
new file mode 100644
index 00000000..fc1938fe
--- /dev/null
+++ b/src/ext/Bal/test/examples/TestEngine/ExampleTestEngine.cpp
@@ -0,0 +1,53 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+#include "precomp.h"
+
+int __cdecl wmain(int argc, LPWSTR argv[])
+{
+    HRESULT hr = S_OK;
+    BOOL fComInitialized = FALSE;
+    BOOL fShowUsage = FALSE;
+
+    // initialize COM
+    hr = ::CoInitializeEx(NULL, COINIT_MULTITHREADED);
+    ExitOnFailure(hr, "Failed to initialize COM.");
+    fComInitialized = TRUE;
+
+    ConsoleInitialize();
+
+    if (argc != 4)
+    {
+        fShowUsage = TRUE;
+    }
+    else if (CSTR_EQUAL == ::CompareString(LOCALE_INVARIANT, NORM_IGNORECASE, argv[1], -1, L"reload", -1))
+    {
+        hr = RunReloadEngine(argv[2], argv[3]);
+    }
+    else if (CSTR_EQUAL == ::CompareString(LOCALE_INVARIANT, NORM_IGNORECASE, argv[1], -1, L"shutdown", -1))
+    {
+        hr = RunShutdownEngine(argv[2], argv[3]);
+    }
+    else if (CSTR_EQUAL == ::CompareString(LOCALE_INVARIANT, NORM_IGNORECASE, argv[1], -1, L"waitforquit", -1))
+    {
+        hr = RunWaitForQuitEngine(argv[2], argv[3]);
+    }
+    else
+    {
+        fShowUsage = TRUE;
+    }
+
+    if (fShowUsage)
+    {
+        ConsoleWriteError(hr = E_INVALIDARG, CONSOLE_COLOR_RED, "Usage: Example.TestEngine.exe {reload|shutdown|waitforquit} Bundle.exe BA.dll");
+    }
+
+    ConsoleUninitialize();
+
+LExit:
+    if (fComInitialized)
+    {
+        ::CoUninitialize();
+    }
+
+    return hr;
+}
diff --git a/src/ext/Bal/test/examples/TestEngine/ReloadEngine.cpp b/src/ext/Bal/test/examples/TestEngine/ReloadEngine.cpp
new file mode 100644
index 00000000..46fd9afa
--- /dev/null
+++ b/src/ext/Bal/test/examples/TestEngine/ReloadEngine.cpp
@@ -0,0 +1,55 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+#include "precomp.h"
+
+HRESULT RunReloadEngine(
+    __in LPCWSTR wzBundleFilePath,
+    __in LPCWSTR wzBAFilePath
+    )
+{
+    HRESULT hr = S_OK;
+    TestEngine* pTestEngine = NULL;
+
+    pTestEngine = new TestEngine();
+    ConsoleExitOnNull(pTestEngine, hr, E_OUTOFMEMORY, CONSOLE_COLOR_RED, "Failed to create new test engine.");
+
+    hr = pTestEngine->Initialize(wzBundleFilePath);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "Failed to initialize engine.");
+
+    hr = pTestEngine->LoadBA(wzBAFilePath);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "Failed to load BA.");
+
+    hr = pTestEngine->SendStartupEvent();
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "BA returned failure for OnStartup.");
+
+    hr = pTestEngine->SimulateQuit(0);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "Failed to simulate quit.");
+
+    hr = pTestEngine->RunApplication();
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "Failed to run engine.");
+
+    hr = pTestEngine->SendShutdownEvent(BOOTSTRAPPER_SHUTDOWN_ACTION_RELOAD_BOOTSTRAPPER);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "BA returned failure for OnShutdown.");
+
+    pTestEngine->UnloadBA();
+
+    hr = pTestEngine->LoadBA(wzBAFilePath);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "Failed to load BA.");
+
+    hr = pTestEngine->SendStartupEvent();
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "BA returned failure for OnStartup.");
+
+    hr = pTestEngine->SimulateQuit(0);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "Failed to simulate quit.");
+
+    hr = pTestEngine->RunApplication();
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "Failed to run engine.");
+
+    hr = pTestEngine->SendShutdownEvent(BOOTSTRAPPER_SHUTDOWN_ACTION_RESTART);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "BA returned failure for OnShutdown.");
+
+    pTestEngine->UnloadBA();
+
+LExit:
+    return hr;
+}
diff --git a/src/ext/Bal/test/examples/TestEngine/ReloadEngine.h b/src/ext/Bal/test/examples/TestEngine/ReloadEngine.h
new file mode 100644
index 00000000..0e8456af
--- /dev/null
+++ b/src/ext/Bal/test/examples/TestEngine/ReloadEngine.h
@@ -0,0 +1,8 @@
+#pragma once
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+
+HRESULT RunReloadEngine(
+    __in LPCWSTR wzBundleFilePath,
+    __in LPCWSTR wzBAFilePath
+    );
diff --git a/src/ext/Bal/test/examples/TestEngine/ShutdownEngine.cpp b/src/ext/Bal/test/examples/TestEngine/ShutdownEngine.cpp
new file mode 100644
index 00000000..3b876e4e
--- /dev/null
+++ b/src/ext/Bal/test/examples/TestEngine/ShutdownEngine.cpp
@@ -0,0 +1,38 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+#include "precomp.h"
+
+HRESULT RunShutdownEngine(
+    __in LPCWSTR wzBundleFilePath,
+    __in LPCWSTR wzBAFilePath
+    )
+{
+    HRESULT hr = S_OK;
+    TestEngine* pTestEngine = NULL;
+
+    pTestEngine = new TestEngine();
+    ConsoleExitOnNull(pTestEngine, hr, E_OUTOFMEMORY, CONSOLE_COLOR_RED, "Failed to create new test engine.");
+
+    hr = pTestEngine->Initialize(wzBundleFilePath);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "Failed to initialize engine.");
+
+    hr = pTestEngine->LoadBA(wzBAFilePath);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "Failed to load BA.");
+
+    hr = pTestEngine->SendStartupEvent();
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "BA returned failure for OnStartup.");
+
+    hr = pTestEngine->SimulateQuit(0);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "Failed to simulate quit.");
+
+    hr = pTestEngine->RunApplication();
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "Failed to run engine.");
+
+    hr = pTestEngine->SendShutdownEvent(BOOTSTRAPPER_SHUTDOWN_ACTION_RELOAD_BOOTSTRAPPER);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "BA returned failure for OnShutdown.");
+
+    pTestEngine->UnloadBA();
+
+LExit:
+    return hr;
+}
diff --git a/src/ext/Bal/test/examples/TestEngine/ShutdownEngine.h b/src/ext/Bal/test/examples/TestEngine/ShutdownEngine.h
new file mode 100644
index 00000000..0cfa147a
--- /dev/null
+++ b/src/ext/Bal/test/examples/TestEngine/ShutdownEngine.h
@@ -0,0 +1,8 @@
+#pragma once
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+
+HRESULT RunShutdownEngine(
+    __in LPCWSTR wzBundleFilePath,
+    __in LPCWSTR wzBAFilePath
+    );
diff --git a/src/ext/Bal/test/examples/TestEngine/TestEngine.cpp b/src/ext/Bal/test/examples/TestEngine/TestEngine.cpp
new file mode 100644
index 00000000..4c7ec1c3
--- /dev/null
+++ b/src/ext/Bal/test/examples/TestEngine/TestEngine.cpp
@@ -0,0 +1,256 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+#include "precomp.h"
+
+HRESULT TestEngine::Initialize(
+    __in LPCWSTR wzBundleFilePath
+    )
+{
+    HRESULT hr = S_OK;
+    MSG msg = { };
+
+    LogInitialize(::GetModuleHandleW(NULL));
+
+    hr = LogOpen(NULL, PathFile(wzBundleFilePath), NULL, L"txt", FALSE, FALSE, NULL);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "Failed to open log.");
+
+    ::PeekMessageW(&msg, NULL, WM_USER, WM_USER, PM_NOREMOVE);
+
+LExit:
+    return hr;
+}
+
+HRESULT TestEngine::LoadBA(
+    __in LPCWSTR wzBAFilePath
+    )
+{
+    HRESULT hr = S_OK;
+    BOOTSTRAPPER_COMMAND command = { };
+    BOOTSTRAPPER_CREATE_ARGS args = { };
+    PFN_BOOTSTRAPPER_APPLICATION_CREATE pfnCreate = NULL;
+
+    if (m_pCreateResults || m_hBAModule)
+    {
+        ExitFunction1(hr = E_INVALIDSTATE);
+    }
+
+    m_pCreateResults = static_cast<BOOTSTRAPPER_CREATE_RESULTS*>(MemAlloc(sizeof(BOOTSTRAPPER_CREATE_RESULTS), TRUE));
+
+    command.cbSize = sizeof(BOOTSTRAPPER_COMMAND);
+
+    hr = PathGetDirectory(wzBAFilePath, &command.wzBootstrapperWorkingFolder);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "Failed to allocate wzBootstrapperWorkingFolder");
+
+    hr = PathConcat(command.wzBootstrapperWorkingFolder, L"BootstrapperApplicationData.xml", &command.wzBootstrapperApplicationDataPath);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "Failed to allocate wzBootstrapperApplicationDataPath");
+
+    args.cbSize = sizeof(BOOTSTRAPPER_CREATE_ARGS);
+    args.pCommand = &command;
+    args.pfnBootstrapperEngineProc = TestEngine::EngineProc;
+    args.pvBootstrapperEngineProcContext = this;
+    args.qwEngineAPIVersion = MAKEQWORDVERSION(0, 0, 0, 1);
+
+    m_pCreateResults->cbSize = sizeof(BOOTSTRAPPER_CREATE_RESULTS);
+
+    m_hBAModule = ::LoadLibraryExW(wzBAFilePath, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
+    ConsoleExitOnNullWithLastError(m_hBAModule, hr, CONSOLE_COLOR_RED, "Failed to load BA dll.");
+
+    pfnCreate = (PFN_BOOTSTRAPPER_APPLICATION_CREATE)::GetProcAddress(m_hBAModule, "BootstrapperApplicationCreate");
+    ConsoleExitOnNull(pfnCreate, hr, E_OUTOFMEMORY, CONSOLE_COLOR_RED, "Failed to get address for BootstrapperApplicationCreate.");
+
+    hr = pfnCreate(&args, m_pCreateResults);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "BA returned failure on BootstrapperApplicationCreate.");
+
+LExit:
+    ReleaseStr(command.wzBootstrapperApplicationDataPath);
+    ReleaseStr(command.wzBootstrapperWorkingFolder);
+
+    return hr;
+}
+
+HRESULT TestEngine::Log(
+    __in BOOTSTRAPPER_LOG_LEVEL level,
+    __in LPCWSTR wzMessage
+    )
+{
+    switch (level)
+    {
+    case BOOTSTRAPPER_LOG_LEVEL_NONE:
+    case BOOTSTRAPPER_LOG_LEVEL_DEBUG:
+        return S_OK;
+    default:
+        LogStringLine(REPORT_STANDARD, "%ls", wzMessage);
+        return ConsoleWriteLine(CONSOLE_COLOR_NORMAL, "%ls", wzMessage);
+    }
+}
+
+HRESULT TestEngine::RunApplication()
+{
+    HRESULT hr = S_OK;
+    MSG msg = { };
+    BOOL fRet = FALSE;
+
+    // Enter the message pump.
+    while (0 != (fRet = ::GetMessageW(&msg, NULL, 0, 0)))
+    {
+        if (-1 == fRet)
+        {
+            ConsoleExitOnFailure(hr = E_UNEXPECTED, CONSOLE_COLOR_RED, "Unexpected return value from message pump.");
+        }
+        else
+        {
+            ProcessBAMessage(&msg);
+        }
+    }
+
+LExit:
+    return hr;
+}
+
+HRESULT TestEngine::SendShutdownEvent(
+    __in BOOTSTRAPPER_SHUTDOWN_ACTION defaultAction
+    )
+{
+    HRESULT hr = S_OK;
+    BA_ONSHUTDOWN_ARGS shutdownArgs = { };
+    BA_ONSHUTDOWN_RESULTS shutdownResults = { };
+    shutdownArgs.cbSize = sizeof(BA_ONSHUTDOWN_ARGS);
+    shutdownResults.action = defaultAction;
+    shutdownResults.cbSize = sizeof(BA_ONSHUTDOWN_RESULTS);
+    hr = m_pCreateResults->pfnBootstrapperApplicationProc(BOOTSTRAPPER_APPLICATION_MESSAGE_ONSHUTDOWN, &shutdownArgs, &shutdownResults, m_pCreateResults->pvBootstrapperApplicationProcContext);
+    return hr;
+}
+
+HRESULT TestEngine::SendStartupEvent()
+{
+    HRESULT hr = S_OK;
+    BA_ONSTARTUP_ARGS startupArgs = { };
+    BA_ONSTARTUP_RESULTS startupResults = { };
+    startupArgs.cbSize = sizeof(BA_ONSTARTUP_ARGS);
+    startupResults.cbSize = sizeof(BA_ONSTARTUP_RESULTS);
+    hr = m_pCreateResults->pfnBootstrapperApplicationProc(BOOTSTRAPPER_APPLICATION_MESSAGE_ONSTARTUP, &startupArgs, &startupResults, m_pCreateResults->pvBootstrapperApplicationProcContext);
+    return hr;
+}
+
+HRESULT TestEngine::SimulateQuit(
+    __in DWORD dwExitCode
+    )
+{
+    BAENGINE_QUIT_ARGS args = { };
+    BAENGINE_QUIT_RESULTS results = { };
+
+    args.cbSize = sizeof(BAENGINE_QUIT_ARGS);
+    args.dwExitCode = dwExitCode;
+
+    results.cbSize = sizeof(BAENGINE_QUIT_RESULTS);
+
+    return BAEngineQuit(&args, &results);
+}
+
+void TestEngine::UnloadBA()
+{
+    PFN_BOOTSTRAPPER_APPLICATION_DESTROY pfnDestroy = NULL;
+    BOOL fDisableUnloading = m_pCreateResults && m_pCreateResults->fDisableUnloading;
+
+    ReleaseNullMem(m_pCreateResults);
+
+    pfnDestroy = (PFN_BOOTSTRAPPER_APPLICATION_DESTROY)::GetProcAddress(m_hBAModule, "BootstrapperApplicationDestroy");
+
+    if (pfnDestroy)
+    {
+        pfnDestroy();
+    }
+
+    if (m_hBAModule)
+    {
+        if (!fDisableUnloading)
+        {
+            ::FreeLibrary(m_hBAModule);
+        }
+
+        m_hBAModule = NULL;
+    }
+}
+
+HRESULT TestEngine::BAEngineLog(
+    __in BAENGINE_LOG_ARGS* pArgs,
+    __in BAENGINE_LOG_RESULTS* /*pResults*/
+    )
+{
+    return Log(pArgs->level, pArgs->wzMessage);
+}
+
+HRESULT TestEngine::BAEngineQuit(
+    __in BAENGINE_QUIT_ARGS* pArgs,
+    __in BAENGINE_QUIT_RESULTS* /*pResults*/
+    )
+{
+    HRESULT hr = S_OK;
+
+    if (!::PostThreadMessageW(m_dwThreadId, WM_TESTENG_QUIT, static_cast<WPARAM>(pArgs->dwExitCode), 0))
+    {
+        ConsoleExitWithLastError(hr, CONSOLE_COLOR_RED, "Failed to post shutdown message.");
+    }
+
+LExit:
+    return hr;
+}
+
+HRESULT WINAPI TestEngine::EngineProc(
+    __in BOOTSTRAPPER_ENGINE_MESSAGE message,
+    __in const LPVOID pvArgs,
+    __inout LPVOID pvResults,
+    __in_opt LPVOID pvContext
+    )
+{
+    HRESULT hr = S_OK;
+    TestEngine* pContext = (TestEngine*)pvContext;
+
+    if (!pContext || !pvArgs || !pvResults)
+    {
+        ExitFunction1(hr = E_INVALIDARG);
+    }
+
+    switch (message)
+    {
+    case BOOTSTRAPPER_ENGINE_MESSAGE_LOG:
+        hr = pContext->BAEngineLog(reinterpret_cast<BAENGINE_LOG_ARGS*>(pvArgs), reinterpret_cast<BAENGINE_LOG_RESULTS*>(pvResults));
+        break;
+    case BOOTSTRAPPER_ENGINE_MESSAGE_QUIT:
+        hr = pContext->BAEngineQuit(reinterpret_cast<BAENGINE_QUIT_ARGS*>(pvArgs), reinterpret_cast<BAENGINE_QUIT_RESULTS*>(pvResults));
+    default:
+        hr = E_NOTIMPL;
+        break;
+    }
+
+LExit:
+    return hr;
+}
+
+HRESULT TestEngine::ProcessBAMessage(
+    __in const MSG* pmsg
+    )
+{
+    HRESULT hr = S_OK;
+
+    switch (pmsg->message)
+    {
+    case WM_TESTENG_QUIT:
+        ::PostQuitMessage(static_cast<int>(pmsg->wParam)); // go bye-bye.
+        break;
+    }
+
+    return hr;
+}
+
+TestEngine::TestEngine()
+{
+    m_hBAModule = NULL;
+    m_pCreateResults = NULL;
+    m_dwThreadId = ::GetCurrentThreadId();
+}
+
+TestEngine::~TestEngine()
+{
+    ReleaseMem(m_pCreateResults);
+}
diff --git a/src/ext/Bal/test/examples/TestEngine/TestEngine.h b/src/ext/Bal/test/examples/TestEngine/TestEngine.h
new file mode 100644
index 00000000..44e813bd
--- /dev/null
+++ b/src/ext/Bal/test/examples/TestEngine/TestEngine.h
@@ -0,0 +1,80 @@
+#pragma once
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+
+enum WM_TESTENG
+{
+    WM_TESTENG_FIRST = WM_APP + 0xFFF, // this enum value must always be first.
+
+    WM_TESTENG_DETECT,
+    WM_TESTENG_PLAN,
+    WM_TESTENG_ELEVATE,
+    WM_TESTENG_APPLY,
+    WM_TESTENG_LAUNCH_APPROVED_EXE,
+    WM_TESTENG_QUIT,
+
+    WM_TESTENG_LAST, // this enum value must always be last.
+};
+
+class TestEngine
+{
+public:
+    HRESULT Initialize(
+        __in LPCWSTR wzBundleFilePath
+        );
+
+    HRESULT LoadBA(
+        __in LPCWSTR wzBAFilePath
+        );
+
+    HRESULT Log(
+        __in BOOTSTRAPPER_LOG_LEVEL level,
+        __in LPCWSTR wzMessage
+        );
+
+    HRESULT RunApplication();
+
+    HRESULT SendShutdownEvent(
+        __in BOOTSTRAPPER_SHUTDOWN_ACTION defaultAction
+        );
+
+    HRESULT SendStartupEvent();
+
+    HRESULT SimulateQuit(
+        __in DWORD dwExitCode
+        );
+
+    void UnloadBA();
+
+private:
+    HRESULT BAEngineLog(
+        __in BAENGINE_LOG_ARGS* pArgs,
+        __in BAENGINE_LOG_RESULTS* pResults
+        );
+
+    HRESULT BAEngineQuit(
+        __in BAENGINE_QUIT_ARGS* pArgs,
+        __in BAENGINE_QUIT_RESULTS* pResults
+        );
+
+    static HRESULT WINAPI EngineProc(
+        __in BOOTSTRAPPER_ENGINE_MESSAGE message,
+        __in const LPVOID pvArgs,
+        __inout LPVOID pvResults,
+        __in_opt LPVOID pvContext
+        );
+
+    HRESULT ProcessBAMessage(
+        __in const MSG* pmsg
+        );
+
+public:
+    TestEngine();
+
+    ~TestEngine();
+
+private:
+    HMODULE m_hBAModule;
+    BOOTSTRAPPER_CREATE_RESULTS* m_pCreateResults;
+    DWORD m_dwThreadId;
+};
\ No newline at end of file
diff --git a/src/ext/Bal/test/examples/TestEngine/WaitForQuitEngine.cpp b/src/ext/Bal/test/examples/TestEngine/WaitForQuitEngine.cpp
new file mode 100644
index 00000000..2f80ba75
--- /dev/null
+++ b/src/ext/Bal/test/examples/TestEngine/WaitForQuitEngine.cpp
@@ -0,0 +1,35 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+#include "precomp.h"
+
+HRESULT RunWaitForQuitEngine(
+    __in LPCWSTR wzBundleFilePath,
+    __in LPCWSTR wzBAFilePath
+    )
+{
+    HRESULT hr = S_OK;
+    TestEngine* pTestEngine = NULL;
+
+    pTestEngine = new TestEngine();
+    ConsoleExitOnNull(pTestEngine, hr, E_OUTOFMEMORY, CONSOLE_COLOR_RED, "Failed to create new test engine.");
+
+    hr = pTestEngine->Initialize(wzBundleFilePath);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "Failed to initialize engine.");
+
+    hr = pTestEngine->LoadBA(wzBAFilePath);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "Failed to load BA.");
+
+    hr = pTestEngine->SendStartupEvent();
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "BA returned failure for OnStartup.");
+
+    hr = pTestEngine->RunApplication();
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "Failed to run engine.");
+
+    hr = pTestEngine->SendShutdownEvent(BOOTSTRAPPER_SHUTDOWN_ACTION_RELOAD_BOOTSTRAPPER);
+    ConsoleExitOnFailure(hr, CONSOLE_COLOR_RED, "BA returned failure for OnShutdown.");
+
+    pTestEngine->UnloadBA();
+
+LExit:
+    return hr;
+}
diff --git a/src/ext/Bal/test/examples/TestEngine/WaitForQuitEngine.h b/src/ext/Bal/test/examples/TestEngine/WaitForQuitEngine.h
new file mode 100644
index 00000000..99e3f63c
--- /dev/null
+++ b/src/ext/Bal/test/examples/TestEngine/WaitForQuitEngine.h
@@ -0,0 +1,8 @@
+#pragma once
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+
+HRESULT RunWaitForQuitEngine(
+    __in LPCWSTR wzBundleFilePath,
+    __in LPCWSTR wzBAFilePath
+    );
diff --git a/src/ext/Bal/test/examples/TestEngine/packages.config b/src/ext/Bal/test/examples/TestEngine/packages.config
new file mode 100644
index 00000000..548ddb48
--- /dev/null
+++ b/src/ext/Bal/test/examples/TestEngine/packages.config
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Nerdbank.GitVersioning" version="3.3.37" targetFramework="native" developmentDependency="true" />
+  <package id="WixToolset.BootstrapperCore.Native" version="4.0.141" targetFramework="native" />
+  <package id="WixToolset.BalUtil" version="4.0.58" targetFramework="native" />
+  <package id="WixToolset.DUtil" version="4.0.72" targetFramework="native" />
+</packages>
\ No newline at end of file
diff --git a/src/ext/Bal/test/examples/TestEngine/precomp.cpp b/src/ext/Bal/test/examples/TestEngine/precomp.cpp
new file mode 100644
index 00000000..37664a1c
--- /dev/null
+++ b/src/ext/Bal/test/examples/TestEngine/precomp.cpp
@@ -0,0 +1,3 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+#include "precomp.h"
diff --git a/src/ext/Bal/test/examples/TestEngine/precomp.h b/src/ext/Bal/test/examples/TestEngine/precomp.h
new file mode 100644
index 00000000..f943f420
--- /dev/null
+++ b/src/ext/Bal/test/examples/TestEngine/precomp.h
@@ -0,0 +1,20 @@
+#pragma once
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+#include <windows.h>
+#include <MsiQuery.h>
+
+#include "dutil.h"
+#include "conutil.h"
+#include "logutil.h"
+#include "memutil.h"
+#include "pathutil.h"
+#include "strutil.h"
+
+#include "BootstrapperEngine.h"
+#include "BootstrapperApplication.h"
+
+#include "TestEngine.h"
+#include "ReloadEngine.h"
+#include "ShutdownEngine.h"
+#include "WaitForQuitEngine.h"
diff --git a/src/ext/Bal/test/examples/WPFCoreBundleFDD/FrameworkDependentBundle.wxs b/src/ext/Bal/test/examples/WPFCoreBundleFDD/FrameworkDependentBundle.wxs
new file mode 100644
index 00000000..68d742b0
--- /dev/null
+++ b/src/ext/Bal/test/examples/WPFCoreBundleFDD/FrameworkDependentBundle.wxs
@@ -0,0 +1,16 @@
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs" xmlns:bal="http://wixtoolset.org/schemas/v4/wxs/bal">
+    <Bundle Name="FDDWPFCoreMBA" Version="1.0.0.0" Manufacturer="Example Corporation" UpgradeCode="5CE5B5C7-4B6B-4B95-B297-731F1F956533">
+        <BootstrapperApplication>
+            <Payload SourceFile="publish\Example.WPFCoreMBA\fdd\Example.WPFCoreMBA.deps.json" Name="Example.WPFCoreMBA.deps.json" />
+            <Payload SourceFile="publish\Example.WPFCoreMBA\fdd\Example.WPFCoreMBA.dll" Name="Example.WPFCoreMBA.dll" bal:BAFactoryAssembly="yes" />
+            <Payload SourceFile="publish\Example.WPFCoreMBA\fdd\Example.WPFCoreMBA.pdb" Name="Example.WPFCoreMBA.pdb" />
+            <Payload SourceFile="publish\Example.WPFCoreMBA\fdd\Example.WPFCoreMBA.runtimeconfig.json" Name="Example.WPFCoreMBA.runtimeconfig.json" />
+            <Payload SourceFile="publish\Example.WPFCoreMBA\fdd\mbanative.dll" Name="mbanative.dll" />
+            <Payload SourceFile="publish\Example.WPFCoreMBA\fdd\WixToolset.Mba.Core.dll" Name="WixToolset.Mba.Core.dll" />
+            <bal:WixDotNetCoreBootstrapperApplicationHost />
+        </BootstrapperApplication>
+        <Chain>
+            <ExePackage DetectCondition="none" SourceFile="c:\windows\system32\kernel32.dll" bal:PrereqPackage="yes" />
+        </Chain>
+    </Bundle>
+</Wix>
diff --git a/src/ext/Bal/test/examples/WPFCoreBundleFDD/WPFCoreBundleFDD.wixproj b/src/ext/Bal/test/examples/WPFCoreBundleFDD/WPFCoreBundleFDD.wixproj
new file mode 100644
index 00000000..ba75a9ff
--- /dev/null
+++ b/src/ext/Bal/test/examples/WPFCoreBundleFDD/WPFCoreBundleFDD.wixproj
@@ -0,0 +1,2 @@
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+<Project Sdk="WixToolset.Sdk" />
diff --git a/src/ext/Bal/test/examples/WPFCoreMBA/AssemblyInfo.cs b/src/ext/Bal/test/examples/WPFCoreMBA/AssemblyInfo.cs
new file mode 100644
index 00000000..03a5c7fa
--- /dev/null
+++ b/src/ext/Bal/test/examples/WPFCoreMBA/AssemblyInfo.cs
@@ -0,0 +1,12 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+using System.Windows;
+
+[assembly:ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+                                     //(used if a resource is not found in the page,
+                                     // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+                                              //(used if a resource is not found in the page,
+                                              // app, or any theme specific resource dictionaries)
+)]
diff --git a/src/ext/Bal/test/examples/WPFCoreMBA/Example.WPFCoreMBA.csproj b/src/ext/Bal/test/examples/WPFCoreMBA/Example.WPFCoreMBA.csproj
new file mode 100644
index 00000000..296e5be9
--- /dev/null
+++ b/src/ext/Bal/test/examples/WPFCoreMBA/Example.WPFCoreMBA.csproj
@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net5.0-windows</TargetFramework>
+    <RuntimeIdentifiers>win-x86;win-x64</RuntimeIdentifiers>
+    <EnableDynamicLoading>true</EnableDynamicLoading>
+    <Description>WPF .NET Core MBA</Description>
+    <UseWPF>true</UseWPF>
+  </PropertyGroup>
+
+
+  <ItemGroup>
+    <PackageReference Include="Nerdbank.GitVersioning" Version="3.3.37" PrivateAssets="all" />
+    <PackageReference Include="WixToolset.Mba.Core" Version="4.0.*" />
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/ext/Bal/test/examples/WPFCoreMBA/MainWindow.xaml b/src/ext/Bal/test/examples/WPFCoreMBA/MainWindow.xaml
new file mode 100644
index 00000000..40a27a06
--- /dev/null
+++ b/src/ext/Bal/test/examples/WPFCoreMBA/MainWindow.xaml
@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+
+
+<Window x:Class="Example.WPFCoreMBA.MainWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:Example.WPFCoreMBA"
+        mc:Ignorable="d"
+        Title="MainWindow" Height="450" Width="800">
+    <Grid>
+
+    </Grid>
+</Window>
diff --git a/src/ext/Bal/test/examples/WPFCoreMBA/MainWindow.xaml.cs b/src/ext/Bal/test/examples/WPFCoreMBA/MainWindow.xaml.cs
new file mode 100644
index 00000000..4f61b807
--- /dev/null
+++ b/src/ext/Bal/test/examples/WPFCoreMBA/MainWindow.xaml.cs
@@ -0,0 +1,17 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace Example.WPFCoreMBA
+{
+    using System.Windows;
+
+    /// <summary>
+    /// Interaction logic for MainWindow.xaml
+    /// </summary>
+    public partial class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            this.InitializeComponent();
+        }
+    }
+}
diff --git a/src/ext/Bal/test/examples/WPFCoreMBA/WPFCoreBA.cs b/src/ext/Bal/test/examples/WPFCoreMBA/WPFCoreBA.cs
new file mode 100644
index 00000000..d50be813
--- /dev/null
+++ b/src/ext/Bal/test/examples/WPFCoreMBA/WPFCoreBA.cs
@@ -0,0 +1,42 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+namespace Example.WPFCoreMBA
+{
+    using System.Windows.Threading;
+    using WixToolset.Mba.Core;
+
+    public class WPFCoreBA : BootstrapperApplication
+    {
+        public WPFCoreBA(IEngine engine)
+            : base(engine)
+        {
+        }
+        
+        public Dispatcher BADispatcher { get; private set; }
+
+        protected override void Run()
+        {
+            this.BADispatcher = Dispatcher.CurrentDispatcher;
+            var window = new MainWindow();
+            window.Closed += (s, e) => this.BADispatcher.InvokeShutdown();
+            //window.Show();
+            //Dispatcher.Run();
+            //this.engine.Quit(0);
+        }
+
+        protected override void OnStartup(StartupEventArgs args)
+        {
+            base.OnStartup(args);
+
+            this.engine.Log(LogLevel.Standard, nameof(WPFCoreBA));
+        }
+
+        protected override void OnShutdown(ShutdownEventArgs args)
+        {
+            base.OnShutdown(args);
+
+            var message = "Shutdown," + args.Action.ToString() + "," + args.HResult.ToString();
+            this.engine.Log(LogLevel.Standard, message);
+        }
+    }
+}
diff --git a/src/ext/Bal/test/examples/WPFCoreMBA/WPFCoreBAFactory.cs b/src/ext/Bal/test/examples/WPFCoreMBA/WPFCoreBAFactory.cs
new file mode 100644
index 00000000..a3ccdf9f
--- /dev/null
+++ b/src/ext/Bal/test/examples/WPFCoreMBA/WPFCoreBAFactory.cs
@@ -0,0 +1,22 @@
+// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
+
+[assembly: WixToolset.Mba.Core.BootstrapperApplicationFactory(typeof(Example.WPFCoreMBA.WPFCoreBAFactory))]
+namespace Example.WPFCoreMBA
+{
+    using WixToolset.Mba.Core;
+
+    public class WPFCoreBAFactory : BaseBootstrapperApplicationFactory
+    {
+        private static int loadCount = 0;
+
+        protected override IBootstrapperApplication Create(IEngine engine, IBootstrapperCommand bootstrapperCommand)
+        {
+            if (loadCount > 0)
+            {
+                engine.Log(LogLevel.Standard, $"Reloaded {loadCount} time(s)");
+            }
+            ++loadCount;
+            return new WPFCoreBA(engine);
+        }
+    }
+}
diff --git a/src/ext/Bal/test/examples/Wix.Build.props b/src/ext/Bal/test/examples/Wix.Build.props
new file mode 100644
index 00000000..aad94bb6
--- /dev/null
+++ b/src/ext/Bal/test/examples/Wix.Build.props
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+<Project>
+  <PropertyGroup>
+    <OutputType>Bundle</OutputType>
+    <TargetExt>.exe</TargetExt>
+    <HarvestDirectoryAdditionalOptions>-generate payloadgroup</HarvestDirectoryAdditionalOptions>
+    <OutputPath>$(OutputPath)examples\</OutputPath>
+  </PropertyGroup>
+</Project>
diff --git a/src/ext/Bal/test/examples/Wix.Build.targets b/src/ext/Bal/test/examples/Wix.Build.targets
new file mode 100644
index 00000000..7e6fe9f2
--- /dev/null
+++ b/src/ext/Bal/test/examples/Wix.Build.targets
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+<Project>
+  <ItemGroup>
+    <BindInputPaths Include="$(OutputPath)" />
+    <WixExtension Include="$(OutputPath)..\netstandard2.0\WixToolset.Bal.wixext.dll" />
+  </ItemGroup>
+</Project>
diff --git a/src/ext/Bal/test/examples/examples.proj b/src/ext/Bal/test/examples/examples.proj
new file mode 100644
index 00000000..08cb7511
--- /dev/null
+++ b/src/ext/Bal/test/examples/examples.proj
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+
+
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">  
+  <Import Project="..\..\Directory.Build.props" />
+
+  <PropertyGroup>
+    <EarliestCoreMBAProjectPath>EarliestCoreMBA\Example.EarliestCoreMBA.csproj</EarliestCoreMBAProjectPath>
+    <FullFramework2MBAProjectPath>FullFramework2MBA\Example.FullFramework2MBA.csproj</FullFramework2MBAProjectPath>
+    <FullFramework4MBAProjectPath>FullFramework4MBA\Example.FullFramework4MBA.csproj</FullFramework4MBAProjectPath>
+    <LatestCoreMBAProjectPath>LatestCoreMBA\Example.LatestCoreMBA.csproj</LatestCoreMBAProjectPath>
+    <WPFCoreMBAProjectPath>WPFCoreMBA\Example.WPFCoreMBA.csproj</WPFCoreMBAProjectPath>
+    <MBAPublishPath>$(OutputPath)examples\publish\</MBAPublishPath>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <CoreMBAProject Include="$(EarliestCoreMBAProjectPath)">
+      <PublishPath>$(MBAPublishPath)Example.EarliestCoreMBA</PublishPath>
+    </CoreMBAProject>
+    <CoreMBAProject Include="$(LatestCoreMBAProjectPath)">
+      <PublishPath>$(MBAPublishPath)Example.LatestCoreMBA</PublishPath>
+    </CoreMBAProject>
+    <CoreMBAProject Include="$(WPFCoreMBAProjectPath)">
+      <PublishPath>$(MBAPublishPath)Example.WPFCoreMBA</PublishPath>
+      <SkipSCD>true</SkipSCD>
+      <SkipTrimmedSCD>true</SkipTrimmedSCD>
+    </CoreMBAProject>
+    
+    <FullMBAProject Include="$(FullFramework2MBAProjectPath)" />
+    <FullMBAProject Include="$(FullFramework4MBAProjectPath)" />
+    
+    <ExampleBundleProject Include="**\*.wixproj" />
+  </ItemGroup>
+
+  <Target Name="PublishCoreExamples">
+    <Exec Command='dotnet publish -o "%(CoreMBAProject.PublishPath)\fdd" -r win-x86 -c $(Configuration) --self-contained false "%(CoreMBAProject.Identity)"'
+          Condition="'%(CoreMBAProject.SkipFDD)'==''" />
+    <Exec Command='dotnet publish -o "%(CoreMBAProject.PublishPath)\scd" -r win-x86 -c $(Configuration) --self-contained true "%(CoreMBAProject.Identity)"'
+          Condition="'%(CoreMBAProject.SkipSCD)'==''" />
+    <Exec Command='dotnet publish -o "%(CoreMBAProject.PublishPath)\trimmedscd" -r win-x86 -c $(Configuration) --self-contained true -p:PublishTrimmed=true "%(CoreMBAProject.Identity)"'
+          Condition="'%(CoreMBAProject.SkipTrimmedSCD)'==''" />
+  </Target>
+
+  <Target Name="Build" DependsOnTargets="PublishCoreExamples">
+    <MSBuild Projects="%(ExampleBundleProject.Identity)" />
+  </Target>
+  
+  <Import Project="..\..\Directory.Build.targets" />
+</Project>
\ No newline at end of file