Add bextutil.

16 files changed, 1032 insertions, 0 deletions

diff --git a/appveyor.cmd b/appveyor.cmd
index 1aceb3b0..8a7782de 100644
--- a/appveyor.cmd
+++ b/appveyor.cmd
@@ -8,6 +8,7 @@ msbuild -p:Configuration=Release;Platform=x86;PlatformToolset=v140_xp
 msbuild -p:Configuration=Release;Platform=x86;PlatformToolset=v141_xp
 
 msbuild -p:Configuration=Release -t:Pack src\balutil\balutil.vcxproj
+msbuild -p:Configuration=Release -t:Pack src\bextutil\bextutil.vcxproj
 msbuild -p:Configuration=Release -t:Pack src\WixToolset.Mba.Core\WixToolset.Mba.Core.csproj
 
 @popd
diff --git a/balutil.sln b/balutil.sln
index 37d391fc..73df2292 100644
--- a/balutil.sln
+++ b/balutil.sln
@@ -5,6 +5,8 @@ VisualStudioVersion = 16.0.29503.13
 MinimumVisualStudioVersion = 15.0.26124.0
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "balutil", "src\balutil\balutil.vcxproj", "{EDCB8095-0E6A-43E0-BC33-C4F762FC5CDB}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "bextutil", "src\bextutil\bextutil.vcxproj", "{06027492-1CB9-48BC-B31E-C1F9356ED07E}"
+EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WixToolset.Mba.Core", "src\WixToolset.Mba.Core\WixToolset.Mba.Core.csproj", "{E7E1841E-A58E-4901-B9CA-4845B807D45F}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "mbanative", "src\mbanative\mbanative.vcxproj", "{665E0441-17F9-4105-B202-EDF274657F6E}"
@@ -27,6 +29,14 @@ Global
                 {EDCB8095-0E6A-43E0-BC33-C4F762FC5CDB}.Release|x64.Build.0 = Release|x64
                 {EDCB8095-0E6A-43E0-BC33-C4F762FC5CDB}.Release|x86.ActiveCfg = Release|Win32
                 {EDCB8095-0E6A-43E0-BC33-C4F762FC5CDB}.Release|x86.Build.0 = Release|Win32
+                {06027492-1CB9-48BC-B31E-C1F9356ED07E}.Debug|x64.ActiveCfg = Debug|x64
+                {06027492-1CB9-48BC-B31E-C1F9356ED07E}.Debug|x64.Build.0 = Debug|x64
+                {06027492-1CB9-48BC-B31E-C1F9356ED07E}.Debug|x86.ActiveCfg = Debug|Win32
+                {06027492-1CB9-48BC-B31E-C1F9356ED07E}.Debug|x86.Build.0 = Debug|Win32
+                {06027492-1CB9-48BC-B31E-C1F9356ED07E}.Release|x64.ActiveCfg = Release|x64
+                {06027492-1CB9-48BC-B31E-C1F9356ED07E}.Release|x64.Build.0 = Release|x64
+                {06027492-1CB9-48BC-B31E-C1F9356ED07E}.Release|x86.ActiveCfg = Release|Win32
+                {06027492-1CB9-48BC-B31E-C1F9356ED07E}.Release|x86.Build.0 = Release|Win32
                 {E7E1841E-A58E-4901-B9CA-4845B807D45F}.Debug|x64.ActiveCfg = Debug|Any CPU
                 {E7E1841E-A58E-4901-B9CA-4845B807D45F}.Debug|x64.Build.0 = Debug|Any CPU
                 {E7E1841E-A58E-4901-B9CA-4845B807D45F}.Debug|x86.ActiveCfg = Debug|Any CPU
diff --git a/src/bextutil/BextBundleExtensionEngine.cpp b/src/bextutil/BextBundleExtensionEngine.cpp
new file mode 100644
index 00000000..02070a6f
--- /dev/null
+++ b/src/bextutil/BextBundleExtensionEngine.cpp
@@ -0,0 +1,331 @@
+// 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"
+
+
+class CBextBundleExtensionEngine : public IBundleExtensionEngine
+{
+public: // IUnknown
+    virtual STDMETHODIMP QueryInterface(
+        __in REFIID riid,
+        __out LPVOID *ppvObject
+        )
+    {
+        if (!ppvObject)
+        {
+            return E_INVALIDARG;
+        }
+
+        *ppvObject = NULL;
+
+        if (::IsEqualIID(__uuidof(IBundleExtensionEngine), riid))
+        {
+            *ppvObject = static_cast<IBundleExtensionEngine*>(this);
+        }
+        else if (::IsEqualIID(IID_IUnknown, riid))
+        {
+            *ppvObject = reinterpret_cast<IUnknown*>(this);
+        }
+        else // no interface for requested iid
+        {
+            return E_NOINTERFACE;
+        }
+
+        AddRef();
+        return S_OK;
+    }
+
+    virtual STDMETHODIMP_(ULONG) AddRef()
+    {
+        return ::InterlockedIncrement(&this->m_cReferences);
+    }
+
+    virtual STDMETHODIMP_(ULONG) Release()
+    {
+        long l = ::InterlockedDecrement(&this->m_cReferences);
+        if (0 < l)
+        {
+            return l;
+        }
+
+        delete this;
+        return 0;
+    }
+
+public: // IBundleExtensionEngine
+    virtual STDMETHODIMP EscapeString(
+        __in_z LPCWSTR wzIn,
+        __out_ecount_opt(*pcchOut) LPWSTR wzOut,
+        __inout DWORD* pcchOut
+        )
+    {
+        HRESULT hr = S_OK;
+        BUNDLE_EXTENSION_ENGINE_ESCAPESTRING_ARGS args = { };
+        BUNDLE_EXTENSION_ENGINE_ESCAPESTRING_RESULTS results = { };
+
+        ExitOnNull(pcchOut, hr, E_INVALIDARG, "pcchOut is required");
+
+        args.cbSize = sizeof(args);
+        args.wzIn = wzIn;
+
+        results.cbSize = sizeof(results);
+        results.wzOut = wzOut;
+        results.cchOut = *pcchOut;
+
+        hr = m_pfnBundleExtensionEngineProc(BUNDLE_EXTENSION_ENGINE_MESSAGE_ESCAPESTRING, &args, &results, m_pvBundleExtensionEngineProcContext);
+
+        *pcchOut = results.cchOut;
+
+    LExit:
+        return hr;
+    }
+
+    virtual STDMETHODIMP EvaluateCondition(
+        __in_z LPCWSTR wzCondition,
+        __out BOOL* pf
+        )
+    {
+        HRESULT hr = S_OK;
+        BUNDLE_EXTENSION_ENGINE_EVALUATECONDITION_ARGS args = { };
+        BUNDLE_EXTENSION_ENGINE_EVALUATECONDITION_RESULTS results = { };
+
+        ExitOnNull(pf, hr, E_INVALIDARG, "pf is required");
+
+        args.cbSize = sizeof(args);
+        args.wzCondition = wzCondition;
+
+        results.cbSize = sizeof(results);
+
+        hr = m_pfnBundleExtensionEngineProc(BUNDLE_EXTENSION_ENGINE_MESSAGE_EVALUATECONDITION, &args, &results, m_pvBundleExtensionEngineProcContext);
+
+        *pf = results.f;
+
+    LExit:
+        return hr;
+    }
+
+    virtual STDMETHODIMP FormatString(
+        __in_z LPCWSTR wzIn,
+        __out_ecount_opt(*pcchOut) LPWSTR wzOut,
+        __inout DWORD* pcchOut
+        )
+    {
+        HRESULT hr = S_OK;
+        BUNDLE_EXTENSION_ENGINE_FORMATSTRING_ARGS args = { };
+        BUNDLE_EXTENSION_ENGINE_FORMATSTRING_RESULTS results = { };
+
+        ExitOnNull(pcchOut, hr, E_INVALIDARG, "pcchOut is required");
+
+        args.cbSize = sizeof(args);
+        args.wzIn = wzIn;
+
+        results.cbSize = sizeof(results);
+        results.wzOut = wzOut;
+        results.cchOut = *pcchOut;
+
+        hr = m_pfnBundleExtensionEngineProc(BUNDLE_EXTENSION_ENGINE_MESSAGE_FORMATSTRING, &args, &results, m_pvBundleExtensionEngineProcContext);
+
+        *pcchOut = results.cchOut;
+
+    LExit:
+        return hr;
+    }
+
+    virtual STDMETHODIMP GetVariableNumeric(
+        __in_z LPCWSTR wzVariable,
+        __out LONGLONG* pllValue
+        )
+    {
+        HRESULT hr = S_OK;
+        BUNDLE_EXTENSION_ENGINE_GETVARIABLENUMERIC_ARGS args = { };
+        BUNDLE_EXTENSION_ENGINE_GETVARIABLENUMERIC_RESULTS results = { };
+
+        ExitOnNull(pllValue, hr, E_INVALIDARG, "pllValue is required");
+
+        args.cbSize = sizeof(args);
+        args.wzVariable = wzVariable;
+
+        results.cbSize = sizeof(results);
+
+        hr = m_pfnBundleExtensionEngineProc(BUNDLE_EXTENSION_ENGINE_MESSAGE_GETVARIABLENUMERIC, &args, &results, m_pvBundleExtensionEngineProcContext);
+
+        *pllValue = results.llValue;
+
+    LExit:
+        SecureZeroMemory(&results, sizeof(results));
+        return hr;
+    }
+
+    virtual STDMETHODIMP GetVariableString(
+        __in_z LPCWSTR wzVariable,
+        __out_ecount_opt(*pcchValue) LPWSTR wzValue,
+        __inout DWORD* pcchValue
+        )
+    {
+        HRESULT hr = S_OK;
+        BUNDLE_EXTENSION_ENGINE_GETVARIABLESTRING_ARGS args = { };
+        BUNDLE_EXTENSION_ENGINE_GETVARIABLESTRING_RESULTS results = { };
+
+        ExitOnNull(pcchValue, hr, E_INVALIDARG, "pcchValue is required");
+
+        args.cbSize = sizeof(args);
+        args.wzVariable = wzVariable;
+
+        results.cbSize = sizeof(results);
+        results.wzValue = wzValue;
+        results.cchValue = *pcchValue;
+
+        hr = m_pfnBundleExtensionEngineProc(BUNDLE_EXTENSION_ENGINE_MESSAGE_GETVARIABLESTRING, &args, &results, m_pvBundleExtensionEngineProcContext);
+
+        *pcchValue = results.cchValue;
+
+    LExit:
+        return hr;
+    }
+
+    virtual STDMETHODIMP GetVariableVersion(
+        __in_z LPCWSTR wzVariable,
+        __out DWORD64* pqwValue
+        )
+    {
+        HRESULT hr = S_OK;
+        BUNDLE_EXTENSION_ENGINE_GETVARIABLEVERSION_ARGS args = { };
+        BUNDLE_EXTENSION_ENGINE_GETVARIABLEVERSION_RESULTS results = { };
+
+        ExitOnNull(pqwValue, hr, E_INVALIDARG, "pqwValue is required");
+
+        args.cbSize = sizeof(args);
+        args.wzVariable = wzVariable;
+
+        results.cbSize = sizeof(results);
+
+        hr = m_pfnBundleExtensionEngineProc(BUNDLE_EXTENSION_ENGINE_MESSAGE_GETVARIABLEVERSION, &args, &results, m_pvBundleExtensionEngineProcContext);
+
+        *pqwValue = results.qwValue;
+
+    LExit:
+        SecureZeroMemory(&results, sizeof(results));
+        return hr;
+    }
+
+    virtual STDMETHODIMP Log(
+        __in BUNDLE_EXTENSION_LOG_LEVEL level,
+        __in_z LPCWSTR wzMessage
+        )
+    {
+        BUNDLE_EXTENSION_ENGINE_LOG_ARGS args = { };
+        BUNDLE_EXTENSION_ENGINE_LOG_RESULTS results = { };
+
+        args.cbSize = sizeof(args);
+        args.level = level;
+        args.wzMessage = wzMessage;
+
+        results.cbSize = sizeof(results);
+
+        return m_pfnBundleExtensionEngineProc(BUNDLE_EXTENSION_ENGINE_MESSAGE_LOG, &args, &results, m_pvBundleExtensionEngineProcContext);
+    }
+
+    virtual STDMETHODIMP SetVariableLiteralString(
+        __in_z LPCWSTR wzVariable,
+        __in_z_opt LPCWSTR wzValue
+        )
+    {
+        BUNDLE_EXTENSION_ENGINE_SETVARIABLELITERALSTRING_ARGS args = { };
+        BUNDLE_EXTENSION_ENGINE_SETVARIABLELITERALSTRING_RESULTS results = { };
+
+        args.cbSize = sizeof(args);
+        args.wzVariable = wzVariable;
+        args.wzValue = wzValue;
+
+        results.cbSize = sizeof(results);
+
+        return m_pfnBundleExtensionEngineProc(BUNDLE_EXTENSION_ENGINE_MESSAGE_SETVARIABLELITERALSTRING, &args, &results, m_pvBundleExtensionEngineProcContext);
+    }
+
+    virtual STDMETHODIMP SetVariableNumeric(
+        __in_z LPCWSTR wzVariable,
+        __in LONGLONG llValue
+        )
+    {
+        BUNDLE_EXTENSION_ENGINE_SETVARIABLENUMERIC_ARGS args = { };
+        BUNDLE_EXTENSION_ENGINE_SETVARIABLENUMERIC_RESULTS results = { };
+
+        args.cbSize = sizeof(args);
+        args.wzVariable = wzVariable;
+        args.llValue = llValue;
+
+        results.cbSize = sizeof(results);
+
+        return m_pfnBundleExtensionEngineProc(BUNDLE_EXTENSION_ENGINE_MESSAGE_SETVARIABLENUMERIC, &args, &results, m_pvBundleExtensionEngineProcContext);
+    }
+
+    virtual STDMETHODIMP SetVariableString(
+        __in_z LPCWSTR wzVariable,
+        __in_z_opt LPCWSTR wzValue
+        )
+    {
+        BUNDLE_EXTENSION_ENGINE_SETVARIABLESTRING_ARGS args = { };
+        BUNDLE_EXTENSION_ENGINE_SETVARIABLESTRING_RESULTS results = { };
+
+        args.cbSize = sizeof(args);
+        args.wzVariable = wzVariable;
+        args.wzValue = wzValue;
+
+        results.cbSize = sizeof(results);
+
+        return m_pfnBundleExtensionEngineProc(BUNDLE_EXTENSION_ENGINE_MESSAGE_SETVARIABLESTRING, &args, &results, m_pvBundleExtensionEngineProcContext);
+    }
+
+    virtual STDMETHODIMP SetVariableVersion(
+        __in_z LPCWSTR wzVariable,
+        __in DWORD64 qwValue
+        )
+    {
+        BUNDLE_EXTENSION_ENGINE_SETVARIABLEVERSION_ARGS args = { };
+        BUNDLE_EXTENSION_ENGINE_SETVARIABLEVERSION_RESULTS results = { };
+
+        args.cbSize = sizeof(args);
+        args.wzVariable = wzVariable;
+        args.qwValue = qwValue;
+
+        results.cbSize = sizeof(results);
+
+        return m_pfnBundleExtensionEngineProc(BUNDLE_EXTENSION_ENGINE_MESSAGE_SETVARIABLEVERSION, &args, &results, m_pvBundleExtensionEngineProcContext);
+    }
+
+public:
+    CBextBundleExtensionEngine(
+        __in PFN_BUNDLE_EXTENSION_ENGINE_PROC pfnBundleExtensionEngineProc,
+        __in_opt LPVOID pvBundleExtensionEngineProcContext
+        )
+    {
+        m_cReferences = 1;
+        m_pfnBundleExtensionEngineProc = pfnBundleExtensionEngineProc;
+        m_pvBundleExtensionEngineProcContext = pvBundleExtensionEngineProcContext;
+    }
+
+private:
+    long m_cReferences;
+    PFN_BUNDLE_EXTENSION_ENGINE_PROC m_pfnBundleExtensionEngineProc;
+    LPVOID m_pvBundleExtensionEngineProcContext;
+};
+
+HRESULT BextBundleExtensionEngineCreate(
+    __in PFN_BUNDLE_EXTENSION_ENGINE_PROC pfnBundleExtensionEngineProc,
+    __in_opt LPVOID pvBundleExtensionEngineProcContext,
+    __out IBundleExtensionEngine** ppEngineForExtension
+    )
+{
+    HRESULT hr = S_OK;
+    CBextBundleExtensionEngine* pBundleExtensionEngine = NULL;
+
+    pBundleExtensionEngine = new CBextBundleExtensionEngine(pfnBundleExtensionEngineProc, pvBundleExtensionEngineProcContext);
+    ExitOnNull(pBundleExtensionEngine, hr, E_OUTOFMEMORY, "Failed to allocate new BextBundleExtensionEngine object.");
+
+    hr = pBundleExtensionEngine->QueryInterface(IID_PPV_ARGS(ppEngineForExtension));
+    ExitOnFailure(hr, "Failed to QI for IBundleExtensionEngine from BextBundleExtensionEngine object.");
+
+LExit:
+    ReleaseObject(pBundleExtensionEngine);
+    return hr;
+}
diff --git a/src/bextutil/bextutil.cpp b/src/bextutil/bextutil.cpp
new file mode 100644
index 00000000..baf35591
--- /dev/null
+++ b/src/bextutil/bextutil.cpp
@@ -0,0 +1,179 @@
+// 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"
+
+static IBundleExtensionEngine* vpEngine = NULL;
+
+// prototypes
+
+DAPI_(void) BextInitialize(
+    __in IBundleExtensionEngine* pEngine
+    )
+{
+    pEngine->AddRef();
+
+    ReleaseObject(vpEngine);
+    vpEngine = pEngine;
+}
+
+DAPI_(HRESULT) BextInitializeFromCreateArgs(
+    __in const BUNDLE_EXTENSION_CREATE_ARGS* pArgs,
+    __out_opt IBundleExtensionEngine** ppEngine
+    )
+{
+    HRESULT hr = S_OK;
+    IBundleExtensionEngine* pEngine = NULL;
+
+    hr = BextBundleExtensionEngineCreate(pArgs->pfnBundleExtensionEngineProc, pArgs->pvBundleExtensionEngineProcContext, &pEngine);
+    ExitOnFailure(hr, "Failed to create BextBundleExtensionEngine.");
+
+    BextInitialize(pEngine);
+
+    if (ppEngine)
+    {
+        *ppEngine = pEngine;
+    }
+    pEngine = NULL;
+
+LExit:
+    ReleaseObject(pEngine);
+
+    return hr;
+}
+
+
+DAPI_(void) BextUninitialize()
+{
+    ReleaseNullObject(vpEngine);
+}
+
+DAPI_(HRESULT) BextGetBundleExtensionDataNode(
+    __in IXMLDOMDocument* pixdManifest,
+    __in LPCWSTR wzExtensionId,
+    __out IXMLDOMNode** ppixnBundleExtension
+    )
+{
+    HRESULT hr = S_OK;
+    IXMLDOMElement* pixeBundleExtensionData = NULL;
+    IXMLDOMNodeList* pixnNodes = NULL;
+    IXMLDOMNode* pixnNode = NULL;
+    DWORD cNodes = 0;
+    LPWSTR sczId = NULL;
+
+    // Get BundleExtensionData element.
+    hr = pixdManifest->get_documentElement(&pixeBundleExtensionData);
+    ExitOnFailure(hr, "Failed to get BundleExtensionData element.");
+
+    // Select BundleExtension nodes.
+    hr = XmlSelectNodes(pixeBundleExtensionData, L"BundleExtension", &pixnNodes);
+    ExitOnFailure(hr, "Failed to select BundleExtension nodes.");
+
+    // Get BundleExtension node count.
+    hr = pixnNodes->get_length((long*)&cNodes);
+    ExitOnFailure(hr, "Failed to get BundleExtension node count.");
+
+    if (!cNodes)
+    {
+        ExitFunction();
+    }
+
+    // Find requested extension.
+    for (DWORD i = 0; i < cNodes; ++i)
+    {
+        hr = XmlNextElement(pixnNodes, &pixnNode, NULL);
+        ExitOnFailure(hr, "Failed to get next node.");
+
+        // @Id
+        hr = XmlGetAttributeEx(pixnNode, L"Id", &sczId);
+        ExitOnFailure(hr, "Failed to get @Id.");
+
+        if (CSTR_EQUAL == ::CompareStringW(LOCALE_INVARIANT, 0, sczId, -1, wzExtensionId, -1))
+        {
+            *ppixnBundleExtension = pixnNode;
+            pixnNode = NULL;
+
+            ExitFunction1(hr = S_OK);
+        }
+
+        // Prepare next iteration.
+        ReleaseNullObject(pixnNode);
+    }
+
+    hr = E_NOTFOUND;
+
+LExit:
+    ReleaseStr(sczId);
+    ReleaseObject(pixnNode);
+    ReleaseObject(pixnNodes);
+    ReleaseObject(pixeBundleExtensionData);
+
+    return hr;
+}
+
+
+DAPIV_(HRESULT) BextLog(
+    __in BUNDLE_EXTENSION_LOG_LEVEL level,
+    __in_z __format_string LPCSTR szFormat,
+    ...
+    )
+{
+    HRESULT hr = S_OK;
+    va_list args;
+    LPSTR sczFormattedAnsi = NULL;
+    LPWSTR sczMessage = NULL;
+
+    if (!vpEngine)
+    {
+        hr = E_POINTER;
+        ExitOnRootFailure(hr, "BextInitialize() must be called first.");
+    }
+
+    va_start(args, szFormat);
+    hr = StrAnsiAllocFormattedArgs(&sczFormattedAnsi, szFormat, args);
+    va_end(args);
+    ExitOnFailure(hr, "Failed to format log string.");
+
+    hr = StrAllocStringAnsi(&sczMessage, sczFormattedAnsi, 0, CP_UTF8);
+    ExitOnFailure(hr, "Failed to convert log string to Unicode.");
+
+    hr = vpEngine->Log(level, sczMessage);
+
+LExit:
+    ReleaseStr(sczMessage);
+    ReleaseStr(sczFormattedAnsi);
+    return hr;
+}
+
+
+DAPIV_(HRESULT) BextLogError(
+    __in HRESULT hrError,
+    __in_z __format_string LPCSTR szFormat,
+    ...
+    )
+{
+    HRESULT hr = S_OK;
+    va_list args;
+    LPSTR sczFormattedAnsi = NULL;
+    LPWSTR sczMessage = NULL;
+
+    if (!vpEngine)
+    {
+        hr = E_POINTER;
+        ExitOnRootFailure(hr, "BextInitialize() must be called first.");
+    }
+
+    va_start(args, szFormat);
+    hr = StrAnsiAllocFormattedArgs(&sczFormattedAnsi, szFormat, args);
+    va_end(args);
+    ExitOnFailure(hr, "Failed to format error log string.");
+
+    hr = StrAllocFormatted(&sczMessage, L"Error 0x%08x: %S", hrError, sczFormattedAnsi);
+    ExitOnFailure(hr, "Failed to prepend error number to error log string.");
+
+    hr = vpEngine->Log(BUNDLE_EXTENSION_LOG_LEVEL_ERROR, sczMessage);
+
+LExit:
+    ReleaseStr(sczMessage);
+    ReleaseStr(sczFormattedAnsi);
+    return hr;
+}
diff --git a/src/bextutil/bextutil.nuspec b/src/bextutil/bextutil.nuspec
new file mode 100644
index 00000000..30e0871d
--- /dev/null
+++ b/src/bextutil/bextutil.nuspec
@@ -0,0 +1,26 @@
+<?xml version="1.0"?>
+<package >
+  <metadata>
+    <id>$id$</id>
+    <version>$version$</version>
+    <authors>$authors$</authors>
+    <owners>$authors$</owners>
+    <!-- <license type="expression">MS-RL</license> -->
+    <licenseUrl>https://licenses.nuget.org/MS-RL</licenseUrl>
+    <projectUrl>https://github.com/wixtoolset/balutil</projectUrl>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <description>$description$</description>
+    <copyright>$copyright$</copyright>
+    <dependencies>
+        <dependency id="WixToolset.BootstrapperCore.Native" version="[4,5)" />
+        <dependency id="WixToolset.DUtil" version="[4,5)" />
+    </dependencies>
+  </metadata>
+
+  <files>
+    <file src="build\$id$.props" target="build\" />
+    <file src="inc\*" target="build\native\include" />
+    <file src="..\..\build\$configuration$\v140_xp\x86\bextutil.lib" target="build\native\v140\x86" />
+    <file src="..\..\build\$configuration$\v141_xp\x86\bextutil.lib" target="build\native\v141\x86" />
+  </files>
+</package>
diff --git a/src/bextutil/bextutil.vcxproj b/src/bextutil/bextutil.vcxproj
new file mode 100644
index 00000000..3deb3317
--- /dev/null
+++ b/src/bextutil/bextutil.vcxproj
@@ -0,0 +1,86 @@
+<?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.BootstrapperCore.Native.4.0.13\build\WixToolset.BootstrapperCore.Native.props" Condition="Exists('..\..\packages\WixToolset.BootstrapperCore.Native.4.0.13\build\WixToolset.BootstrapperCore.Native.props')" />
+  <Import Project="..\..\packages\WixToolset.DUtil.4.0.18\build\WixToolset.DUtil.props" Condition="Exists('..\..\packages\WixToolset.DUtil.4.0.18\build\WixToolset.DUtil.props')" />
+
+  <ItemGroup Label="ProjectConfigurations">
+    <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>{06027492-1CB9-48BC-B31E-C1F9356ED07E}</ProjectGuid>
+    <ConfigurationType>StaticLibrary</ConfigurationType>
+    <TargetName>bextutil</TargetName>
+    <PlatformToolset>v141</PlatformToolset>
+    <CharacterSet>MultiByte</CharacterSet>
+    <Description>WiX Toolset Bundle Extension native utility library</Description>
+  </PropertyGroup>
+
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <Import Project="..\..\packages\Nerdbank.GitVersioning.2.1.65\build\Nerdbank.GitVersioning.targets" Condition="Exists('..\..\packages\Nerdbank.GitVersioning.2.1.65\build\Nerdbank.GitVersioning.targets')" />
+  <Import Project="..\NativeMultiTargeting.Build.props" />
+
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+
+  <ImportGroup Label="Shared">
+  </ImportGroup>
+
+  <PropertyGroup>
+    <ProjectAdditionalIncludeDirectories>$(ProjectDir)..\inc</ProjectAdditionalIncludeDirectories>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ClCompile Include="BextBundleExtensionEngine.cpp" />
+    <ClCompile Include="bextutil.cpp" />
+    <ClCompile Include="precomp.cpp">
+      <PrecompiledHeader>Create</PrecompiledHeader>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="inc\BextBaseBundleExtension.h" />
+    <ClInclude Include="inc\BextBaseBundleExtensionProc.h" />
+    <ClInclude Include="inc\BextBundleExtensionEngine.h" />
+    <ClInclude Include="inc\bextutil.h" />
+    <ClInclude Include="inc\IBundleExtension.h" />
+    <ClInclude Include="inc\IBundleExtensionEngine.h" />
+    <ClInclude Include="precomp.h" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <None Include="packages.config" />
+  </ItemGroup>
+
+  <Target Name="Pack"
+          DependsOnTargets="GetBuildVersion">
+    <Exec Command='nuget pack bextutil.nuspec -OutputDirectory "$(BaseOutputPath)$(Configuration)" -Properties Configuration=$(Configuration);Id=WixToolset.BextUtil;Version="$(BuildVersionSimple)";Authors="$(Authors)";Copyright="$(Copyright)";Description="$(Description)";Title="$(Title)"' />
+  </Target>
+
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('..\..\packages\WixToolset.BootstrapperCore.Native.4.0.13\build\WixToolset.BootstrapperCore.Native.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\WixToolset.BootstrapperCore.Native.4.0.13\build\WixToolset.BootstrapperCore.Native.props'))" />
+    <Error Condition="!Exists('..\..\packages\WixToolset.DUtil.4.0.18\build\WixToolset.DUtil.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\WixToolset.DUtil.4.0.18\build\WixToolset.DUtil.props'))" />
+    <Error Condition="!Exists('..\..\packages\Nerdbank.GitVersioning.2.1.65\build\Nerdbank.GitVersioning.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\Nerdbank.GitVersioning.2.1.65\build\Nerdbank.GitVersioning.targets'))" />
+  </Target>
+</Project>
diff --git a/src/bextutil/build/WixToolset.BextUtil.props b/src/bextutil/build/WixToolset.BextUtil.props
new file mode 100644
index 00000000..3e2980ec
--- /dev/null
+++ b/src/bextutil/build/WixToolset.BextUtil.props
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information. -->
+
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <AdditionalIncludeDirectories>$(MSBuildThisFileDirectory)native\include\;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+    </ClCompile>
+    <ResourceCompile>
+      <AdditionalIncludeDirectories>$(MSBuildThisFileDirectory)native\include\;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+    </ResourceCompile>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition=" $(PlatformToolset.ToLower().StartsWith('v140')) ">
+    <Link>
+      <AdditionalDependencies>$(MSBuildThisFileDirectory)native\v140\$(PlatformTarget)\bextutil.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition=" $(PlatformToolset.ToLower().StartsWith('v141')) ">
+    <Link>
+      <AdditionalDependencies>$(MSBuildThisFileDirectory)native\v141\$(PlatformTarget)\bextutil.lib;%(AdditionalDependencies)</AdditionalDependencies>
+    </Link>
+  </ItemDefinitionGroup>
+</Project>
diff --git a/src/bextutil/inc/BextBaseBundleExtension.h b/src/bextutil/inc/BextBaseBundleExtension.h
new file mode 100644
index 00000000..69c338e4
--- /dev/null
+++ b/src/bextutil/inc/BextBaseBundleExtension.h
@@ -0,0 +1,120 @@
+// 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 "BundleExtensionEngine.h"
+#include "BundleExtension.h"
+#include "IBundleExtensionEngine.h"
+#include "IBundleExtension.h"
+
+#include "bextutil.h"
+
+class CBextBaseBundleExtension : public IBundleExtension
+{
+public: // IUnknown
+    virtual STDMETHODIMP QueryInterface(
+        __in REFIID riid,
+        __out LPVOID *ppvObject
+        )
+    {
+        if (!ppvObject)
+        {
+            return E_INVALIDARG;
+        }
+
+        *ppvObject = NULL;
+
+        if (::IsEqualIID(__uuidof(IBundleExtension), riid))
+        {
+            *ppvObject = static_cast<IBundleExtension*>(this);
+        }
+        else if (::IsEqualIID(IID_IUnknown, riid))
+        {
+            *ppvObject = static_cast<IUnknown*>(this);
+        }
+        else // no interface for requested iid
+        {
+            return E_NOINTERFACE;
+        }
+
+        AddRef();
+        return S_OK;
+    }
+
+    virtual STDMETHODIMP_(ULONG) AddRef()
+    {
+        return ::InterlockedIncrement(&this->m_cReferences);
+    }
+
+    virtual STDMETHODIMP_(ULONG) Release()
+    {
+        long l = ::InterlockedDecrement(&this->m_cReferences);
+        if (0 < l)
+        {
+            return l;
+        }
+
+        delete this;
+        return 0;
+    }
+
+public: // IBundleExtension
+    virtual STDMETHODIMP Search(
+        __in LPCWSTR /*wzId*/,
+        __in LPCWSTR /*wzVariable*/
+        )
+    {
+        return E_NOTIMPL;
+    }
+
+    virtual STDMETHODIMP BundleExtensionProc(
+        __in BUNDLE_EXTENSION_MESSAGE /*message*/,
+        __in const LPVOID /*pvArgs*/,
+        __inout LPVOID /*pvResults*/,
+        __in_opt LPVOID /*pvContext*/
+        )
+    {
+        return E_NOTIMPL;
+    }
+
+public: //CBextBaseBundleExtension
+    virtual STDMETHODIMP Initialize(
+        __in const BUNDLE_EXTENSION_CREATE_ARGS* pCreateArgs
+    )
+    {
+        HRESULT hr = S_OK;
+
+        hr = StrAllocString(&m_sczBundleExtensionDataPath, pCreateArgs->wzBundleExtensionDataPath, 0);
+        ExitOnFailure(hr, "Failed to copy BundleExtensionDataPath.");
+
+    LExit:
+        return hr;
+    }
+
+protected:
+
+    CBextBaseBundleExtension(
+        __in IBundleExtensionEngine* pEngine
+        )
+    {
+        m_cReferences = 1;
+
+        pEngine->AddRef();
+        m_pEngine = pEngine;
+
+        m_sczBundleExtensionDataPath = NULL;
+    }
+
+    virtual ~CBextBaseBundleExtension()
+    {
+        ReleaseNullObject(m_pEngine);
+        ReleaseStr(m_sczBundleExtensionDataPath);
+    }
+
+protected:
+    IBundleExtensionEngine* m_pEngine;
+    LPWSTR m_sczBundleExtensionDataPath;
+
+private:
+    long m_cReferences;
+};
diff --git a/src/bextutil/inc/BextBaseBundleExtensionProc.h b/src/bextutil/inc/BextBaseBundleExtensionProc.h
new file mode 100644
index 00000000..f71e3b92
--- /dev/null
+++ b/src/bextutil/inc/BextBaseBundleExtensionProc.h
@@ -0,0 +1,48 @@
+#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 "BundleExtensionEngine.h"
+#include "BundleExtension.h"
+#include "IBundleExtensionEngine.h"
+#include "IBundleExtension.h"
+
+static HRESULT BextBaseBEProcSearch(
+    __in IBundleExtension* pBE,
+    __in BUNDLE_EXTENSION_SEARCH_ARGS* pArgs,
+    __inout BUNDLE_EXTENSION_SEARCH_RESULTS* /*pResults*/
+    )
+{
+    return pBE->Search(pArgs->wzId, pArgs->wzVariable);
+}
+
+/*******************************************************************
+BextBaseBundleExtensionProc - requires pvContext to be of type IBundleExtension.
+                              Provides a default mapping between the message based
+                              BundleExtension interface and the COM-based BundleExtension interface.
+
+*******************************************************************/
+static HRESULT WINAPI BextBaseBundleExtensionProc(
+    __in BUNDLE_EXTENSION_MESSAGE message,
+    __in const LPVOID pvArgs,
+    __inout LPVOID pvResults,
+    __in_opt LPVOID pvContext
+    )
+{
+    IBundleExtension* pBE = reinterpret_cast<IBundleExtension*>(pvContext);
+    HRESULT hr = pBE->BundleExtensionProc(message, pvArgs, pvResults, pvContext);
+    
+    if (E_NOTIMPL == hr)
+    {
+        switch (message)
+        {
+        case BUNDLE_EXTENSION_MESSAGE_SEARCH:
+            hr = BextBaseBEProcSearch(pBE, reinterpret_cast<BUNDLE_EXTENSION_SEARCH_ARGS*>(pvArgs), reinterpret_cast<BUNDLE_EXTENSION_SEARCH_RESULTS*>(pvResults));
+            break;
+        }
+    }
+
+    return hr;
+}
diff --git a/src/bextutil/inc/BextBundleExtensionEngine.h b/src/bextutil/inc/BextBundleExtensionEngine.h
new file mode 100644
index 00000000..9fdcb700
--- /dev/null
+++ b/src/bextutil/inc/BextBundleExtensionEngine.h
@@ -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.
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// function declarations
+
+HRESULT BextBundleExtensionEngineCreate(
+    __in PFN_BUNDLE_EXTENSION_ENGINE_PROC pfnBundleExtensionEngineProc,
+    __in_opt LPVOID pvBundleExtensionEngineProcContext,
+    __out IBundleExtensionEngine** ppEngineForExtension
+    );
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/src/bextutil/inc/IBundleExtension.h b/src/bextutil/inc/IBundleExtension.h
new file mode 100644
index 00000000..7516c11b
--- /dev/null
+++ b/src/bextutil/inc/IBundleExtension.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.
+
+
+DECLARE_INTERFACE_IID_(IBundleExtension, IUnknown, "93123C9D-796B-4FCD-A507-6EDEF9A925FD")
+{
+    STDMETHOD(Search)(
+        __in LPCWSTR wzId,
+        __in LPCWSTR wzVariable
+        ) = 0;
+
+    // BundleExtensionProc - The PFN_BUNDLE_EXTENSION_PROC can call this method to give the BundleExtension raw access to the callback from the engine.
+    //                       This might be used to help the BundleExtension support more than one version of the engine.
+    STDMETHOD(BundleExtensionProc)(
+        __in BUNDLE_EXTENSION_MESSAGE message,
+        __in const LPVOID pvArgs,
+        __inout LPVOID pvResults,
+        __in_opt LPVOID pvContext
+        ) = 0;
+};
diff --git a/src/bextutil/inc/IBundleExtensionEngine.h b/src/bextutil/inc/IBundleExtensionEngine.h
new file mode 100644
index 00000000..869c6695
--- /dev/null
+++ b/src/bextutil/inc/IBundleExtensionEngine.h
@@ -0,0 +1,64 @@
+#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.
+
+
+DECLARE_INTERFACE_IID_(IBundleExtensionEngine, IUnknown, "9D027A39-F6B6-42CC-9737-C185089EB263")
+{
+    STDMETHOD(EscapeString)(
+        __in_z LPCWSTR wzIn,
+        __out_ecount_opt(*pcchOut) LPWSTR wzOut,
+        __inout DWORD * pcchOut
+        ) = 0;
+
+    STDMETHOD(EvaluateCondition)(
+        __in_z LPCWSTR wzCondition,
+        __out BOOL * pf
+        ) = 0;
+
+    STDMETHOD(FormatString)(
+        __in_z LPCWSTR wzIn,
+        __out_ecount_opt(*pcchOut) LPWSTR wzOut,
+        __inout DWORD * pcchOut
+        ) = 0;
+
+    STDMETHOD(GetVariableNumeric)(
+        __in_z LPCWSTR wzVariable,
+        __out LONGLONG* pllValue
+        ) = 0;
+
+    STDMETHOD(GetVariableString)(
+        __in_z LPCWSTR wzVariable,
+        __out_ecount_opt(*pcchValue) LPWSTR wzValue,
+        __inout DWORD* pcchValue
+        ) = 0;
+
+    STDMETHOD(GetVariableVersion)(
+        __in_z LPCWSTR wzVariable,
+        __out DWORD64* pqwValue
+        ) = 0;
+
+    STDMETHOD(Log)(
+        __in BUNDLE_EXTENSION_LOG_LEVEL level,
+        __in_z LPCWSTR wzMessage
+        ) = 0;
+
+    STDMETHOD(SetVariableLiteralString)(
+        __in_z LPCWSTR wzVariable,
+        __in_z_opt LPCWSTR wzValue
+        ) = 0;
+
+    STDMETHOD(SetVariableNumeric)(
+        __in_z LPCWSTR wzVariable,
+        __in LONGLONG llValue
+        ) = 0;
+
+    STDMETHOD(SetVariableString)(
+        __in_z LPCWSTR wzVariable,
+        __in_z_opt LPCWSTR wzValue
+        ) = 0;
+
+    STDMETHOD(SetVariableVersion)(
+        __in_z LPCWSTR wzVariable,
+        __in DWORD64 qwValue
+        ) = 0;
+};
diff --git a/src/bextutil/inc/bextutil.h b/src/bextutil/inc/bextutil.h
new file mode 100644
index 00000000..0472f854
--- /dev/null
+++ b/src/bextutil/inc/bextutil.h
@@ -0,0 +1,76 @@
+#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 "dutil.h"
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define BextExitOnFailure(x, f, ...) if (FAILED(x)) { BextLogError(x, f, __VA_ARGS__); ExitTrace(x, f, __VA_ARGS__); goto LExit; }
+#define BextExitOnRootFailure(x, f, ...) if (FAILED(x)) { BextLogError(x, f, __VA_ARGS__); Dutil_RootFailure(__FILE__, __LINE__, x); ExitTrace(x, f, __VA_ARGS__); goto LExit; }
+#define BextExitOnNullWithLastError(p, x, f, ...) if (NULL == p) { DWORD Dutil_er = ::GetLastError(); x = HRESULT_FROM_WIN32(Dutil_er); if (!FAILED(x)) { x = E_FAIL; } BextLogError(x, f, __VA_ARGS__); ExitTrace(x, f, __VA_ARGS__); goto LExit; }
+
+const LPCWSTR BUNDLE_EXTENSION_MANIFEST_FILENAME = L"BundleExtensionData.xml";
+
+
+/*******************************************************************
+ BextInitialize - remembers the engine interface to enable logging and
+                  other functions.
+
+********************************************************************/
+DAPI_(void) BextInitialize(
+    __in IBundleExtensionEngine* pEngine
+    );
+
+/*******************************************************************
+ BextInitializeFromCreateArgs - convenience function to call BextBundleExtensionEngineCreate
+                                then pass it along to BextInitialize.
+
+********************************************************************/
+DAPI_(HRESULT) BextInitializeFromCreateArgs(
+    __in const BUNDLE_EXTENSION_CREATE_ARGS* pArgs,
+    __out IBundleExtensionEngine** ppEngine
+    );
+
+/*******************************************************************
+ BextUninitialize - cleans up utility layer internals.
+
+********************************************************************/
+DAPI_(void) BextUninitialize();
+
+/*******************************************************************
+ BextGetBundleExtensionDataNode - gets the requested BundleExtension node.
+
+********************************************************************/
+DAPI_(HRESULT) BextGetBundleExtensionDataNode(
+    __in IXMLDOMDocument* pixdManifest,
+    __in LPCWSTR wzExtensionId,
+    __out IXMLDOMNode** ppixnBundleExtension
+    );
+
+/*******************************************************************
+ BextLog - logs a message with the engine.
+
+********************************************************************/
+DAPIV_(HRESULT) BextLog(
+    __in BUNDLE_EXTENSION_LOG_LEVEL level,
+    __in_z __format_string LPCSTR szFormat,
+    ...
+    );
+
+/*******************************************************************
+ BextLogError - logs an error message with the engine.
+
+********************************************************************/
+DAPIV_(HRESULT) BextLogError(
+    __in HRESULT hr,
+    __in_z __format_string LPCSTR szFormat,
+    ...
+    );
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/src/bextutil/packages.config b/src/bextutil/packages.config
new file mode 100644
index 00000000..75a6476b
--- /dev/null
+++ b/src/bextutil/packages.config
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<packages>
+  <package id="Nerdbank.GitVersioning" version="2.1.65" targetFramework="native" developmentDependency="true" />
+  <package id="WixToolset.BootstrapperCore.Native" version="4.0.13" targetFramework="native" />
+  <package id="WixToolset.DUtil" version="4.0.18" targetFramework="native" />
+</packages>
\ No newline at end of file
diff --git a/src/bextutil/precomp.cpp b/src/bextutil/precomp.cpp
new file mode 100644
index 00000000..37664a1c
--- /dev/null
+++ b/src/bextutil/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/bextutil/precomp.h b/src/bextutil/precomp.h
new file mode 100644
index 00000000..5d1dd20b
--- /dev/null
+++ b/src/bextutil/precomp.h
@@ -0,0 +1,22 @@
+#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 <strsafe.h>
+#include <msxml2.h>
+
+#include <dutil.h>
+#include <locutil.h>
+#include <memutil.h>
+#include <strutil.h>
+#include <xmlutil.h>
+
+#include <BundleExtensionEngine.h>
+#include <BundleExtension.h>
+
+#include "IBundleExtensionEngine.h"
+#include "IBundleExtension.h"
+
+#include "bextutil.h"
+#include "BextBundleExtensionEngine.h"