16 files changed, 237 insertions, 90 deletions

diff --git a/src/engine/apply.cpp b/src/engine/apply.cpp
index ee11cdee..eae7c681 100644
--- a/src/engine/apply.cpp
+++ b/src/engine/apply.cpp
@@ -2064,7 +2064,7 @@ static HRESULT ExecuteExePackage(
     fBeginCalled = TRUE;
 
     // Send package execute begin to BA.
-    hr = UserExperienceOnExecutePackageBegin(&pEngineState->userExperience, pExecuteAction->exePackage.pPackage->sczId, !fRollback, pExecuteAction->exePackage.action);
+    hr = UserExperienceOnExecutePackageBegin(&pEngineState->userExperience, pExecuteAction->exePackage.pPackage->sczId, !fRollback, pExecuteAction->exePackage.action, INSTALLUILEVEL_NOCHANGE, false);
     ExitOnRootFailure(hr, "BA aborted execute EXE package begin.");
 
     message.type = GENERIC_EXECUTE_MESSAGE_PROGRESS;
@@ -2133,7 +2133,7 @@ static HRESULT ExecuteMsiPackage(
     fBeginCalled = TRUE;
 
     // Send package execute begin to BA.
-    hr = UserExperienceOnExecutePackageBegin(&pEngineState->userExperience, pExecuteAction->msiPackage.pPackage->sczId, !fRollback, pExecuteAction->msiPackage.action);
+    hr = UserExperienceOnExecutePackageBegin(&pEngineState->userExperience, pExecuteAction->msiPackage.pPackage->sczId, !fRollback, pExecuteAction->msiPackage.action, pExecuteAction->msiPackage.uiLevel, pExecuteAction->msiPackage.fDisableExternalUiHandler);
     ExitOnRootFailure(hr, "BA aborted execute MSI package begin.");
 
     // execute package
@@ -2188,7 +2188,7 @@ static HRESULT ExecuteMspPackage(
     fBeginCalled = TRUE;
 
     // Send package execute begin to BA.
-    hr = UserExperienceOnExecutePackageBegin(&pEngineState->userExperience, pExecuteAction->mspTarget.pPackage->sczId, !fRollback, pExecuteAction->mspTarget.action);
+    hr = UserExperienceOnExecutePackageBegin(&pEngineState->userExperience, pExecuteAction->mspTarget.pPackage->sczId, !fRollback, pExecuteAction->mspTarget.action, pExecuteAction->mspTarget.uiLevel, pExecuteAction->mspTarget.fDisableExternalUiHandler);
     ExitOnRootFailure(hr, "BA aborted execute MSP package begin.");
 
     // Now send all the patches that target this product code.
@@ -2255,7 +2255,7 @@ static HRESULT ExecuteMsuPackage(
     fBeginCalled = TRUE;
 
     // Send package execute begin to BA.
-    hr = UserExperienceOnExecutePackageBegin(&pEngineState->userExperience, pExecuteAction->msuPackage.pPackage->sczId, !fRollback, pExecuteAction->msuPackage.action);
+    hr = UserExperienceOnExecutePackageBegin(&pEngineState->userExperience, pExecuteAction->msuPackage.pPackage->sczId, !fRollback, pExecuteAction->msuPackage.action, INSTALLUILEVEL_NOCHANGE, false);
     ExitOnRootFailure(hr, "BA aborted execute MSU package begin.");
 
     message.type = GENERIC_EXECUTE_MESSAGE_PROGRESS;
diff --git a/src/engine/core.cpp b/src/engine/core.cpp
index 26e74588..c153f162 100644
--- a/src/engine/core.cpp
+++ b/src/engine/core.cpp
@@ -431,7 +431,7 @@ extern "C" HRESULT CorePlan(
         ExitOnFailure(hr, "Failed to plan the layout of the bundle.");
 
         // Plan the packages' layout.
-        hr = PlanPackages(&pEngineState->registration, &pEngineState->userExperience, &pEngineState->packages, &pEngineState->plan, &pEngineState->log, &pEngineState->variables, FALSE, pEngineState->command.display, pEngineState->command.relationType, sczLayoutDirectory, &hSyncpointEvent);
+        hr = PlanPackages(&pEngineState->registration, &pEngineState->userExperience, &pEngineState->packages, &pEngineState->plan, &pEngineState->log, &pEngineState->variables, FALSE, pEngineState->command.relationType, sczLayoutDirectory, &hSyncpointEvent);
         ExitOnFailure(hr, "Failed to plan packages.");
     }
     else if (BOOTSTRAPPER_ACTION_UPDATE_REPLACE == action || BOOTSTRAPPER_ACTION_UPDATE_REPLACE_EMBEDDED == action)
@@ -440,7 +440,7 @@ extern "C" HRESULT CorePlan(
 
         pUpgradeBundlePackage = &pEngineState->update.package;
 
-        hr = PlanUpdateBundle(&pEngineState->userExperience, pUpgradeBundlePackage, &pEngineState->plan, &pEngineState->log, &pEngineState->variables, pEngineState->command.display, pEngineState->command.relationType, &hSyncpointEvent);
+        hr = PlanUpdateBundle(&pEngineState->userExperience, pUpgradeBundlePackage, &pEngineState->plan, &pEngineState->log, &pEngineState->variables, pEngineState->command.relationType, &hSyncpointEvent);
         ExitOnFailure(hr, "Failed to plan update.");
     }
     else if (pEngineState->registration.fEnabledForwardCompatibleBundle)
@@ -449,7 +449,7 @@ extern "C" HRESULT CorePlan(
 
         pForwardCompatibleBundlePackage = &pEngineState->registration.forwardCompatibleBundle;
 
-        hr = PlanPassThroughBundle(&pEngineState->userExperience, pForwardCompatibleBundlePackage, &pEngineState->plan, &pEngineState->log, &pEngineState->variables, pEngineState->command.display, pEngineState->command.relationType, &hSyncpointEvent);
+        hr = PlanPassThroughBundle(&pEngineState->userExperience, pForwardCompatibleBundlePackage, &pEngineState->plan, &pEngineState->log, &pEngineState->variables, pEngineState->command.relationType, &hSyncpointEvent);
         ExitOnFailure(hr, "Failed to plan passthrough.");
     }
     else // doing an action that modifies the machine state.
@@ -471,7 +471,7 @@ extern "C" HRESULT CorePlan(
             hr = PlanRelatedBundlesBegin(&pEngineState->userExperience, &pEngineState->registration, pEngineState->command.relationType, &pEngineState->plan);
             ExitOnFailure(hr, "Failed to plan related bundles.");
 
-            hr = PlanPackages(&pEngineState->registration, &pEngineState->userExperience, &pEngineState->packages, &pEngineState->plan, &pEngineState->log, &pEngineState->variables, pEngineState->registration.fInstalled, pEngineState->command.display, pEngineState->command.relationType, NULL, &hSyncpointEvent);
+            hr = PlanPackages(&pEngineState->registration, &pEngineState->userExperience, &pEngineState->packages, &pEngineState->plan, &pEngineState->log, &pEngineState->variables, pEngineState->registration.fInstalled, pEngineState->command.relationType, NULL, &hSyncpointEvent);
             ExitOnFailure(hr, "Failed to plan packages.");
 
             // Schedule the update of related bundles last.
diff --git a/src/engine/elevation.cpp b/src/engine/elevation.cpp
index 0b96c300..d0652270 100644
--- a/src/engine/elevation.cpp
+++ b/src/engine/elevation.cpp
@@ -821,9 +821,15 @@ extern "C" HRESULT ElevationExecuteMsiPackage(
     hr = BuffWriteString(&pbData, &cbData, pExecuteAction->msiPackage.sczLogPath);
     ExitOnFailure(hr, "Failed to write package log to message buffer.");
 
+    hr = BuffWriteNumber(&pbData, &cbData, (DWORD)pExecuteAction->msiPackage.actionMsiProperty);
+    ExitOnFailure(hr, "Failed to write actionMsiProperty to message buffer.");
+
     hr = BuffWriteNumber(&pbData, &cbData, (DWORD)pExecuteAction->msiPackage.uiLevel);
     ExitOnFailure(hr, "Failed to write UI level to message buffer.");
 
+    hr = BuffWriteNumber(&pbData, &cbData, (DWORD)pExecuteAction->msiPackage.fDisableExternalUiHandler);
+    ExitOnFailure(hr, "Failed to write fDisableExternalUiHandler to message buffer.");
+
     hr = BuffWriteNumber(&pbData, &cbData, (DWORD)pExecuteAction->msiPackage.action);
     ExitOnFailure(hr, "Failed to write action to message buffer.");
 
@@ -897,9 +903,15 @@ extern "C" HRESULT ElevationExecuteMspPackage(
     hr = BuffWriteString(&pbData, &cbData, pExecuteAction->mspTarget.sczLogPath);
     ExitOnFailure(hr, "Failed to write package log to message buffer.");
 
+    hr = BuffWriteNumber(&pbData, &cbData, (DWORD)pExecuteAction->mspTarget.actionMsiProperty);
+    ExitOnFailure(hr, "Failed to write actionMsiProperty to message buffer.");
+
     hr = BuffWriteNumber(&pbData, &cbData, (DWORD)pExecuteAction->mspTarget.uiLevel);
     ExitOnFailure(hr, "Failed to write UI level to message buffer.");
 
+    hr = BuffWriteNumber(&pbData, &cbData, (DWORD)pExecuteAction->mspTarget.fDisableExternalUiHandler);
+    ExitOnFailure(hr, "Failed to write fDisableExternalUiHandler to message buffer.");
+
     hr = BuffWriteNumber(&pbData, &cbData, (DWORD)pExecuteAction->mspTarget.action);
     ExitOnFailure(hr, "Failed to write action to message buffer.");
 
@@ -2237,9 +2249,15 @@ static HRESULT OnExecuteMsiPackage(
     hr = BuffReadString(pbData, cbData, &iData, &executeAction.msiPackage.sczLogPath);
     ExitOnFailure(hr, "Failed to read package log.");
 
+    hr = BuffReadNumber(pbData, cbData, &iData, (DWORD*)&executeAction.msiPackage.actionMsiProperty);
+    ExitOnFailure(hr, "Failed to read actionMsiProperty.");
+
     hr = BuffReadNumber(pbData, cbData, &iData, (DWORD*)&executeAction.msiPackage.uiLevel);
     ExitOnFailure(hr, "Failed to read UI level.");
 
+    hr = BuffReadNumber(pbData, cbData, &iData, (DWORD*)&executeAction.msiPackage.fDisableExternalUiHandler);
+    ExitOnFailure(hr, "Failed to read fDisableExternalUiHandler.");
+
     hr = BuffReadNumber(pbData, cbData, &iData, (DWORD*)&executeAction.msiPackage.action);
     ExitOnFailure(hr, "Failed to read action.");
 
@@ -2334,9 +2352,15 @@ static HRESULT OnExecuteMspPackage(
     hr = BuffReadString(pbData, cbData, &iData, &executeAction.mspTarget.sczLogPath);
     ExitOnFailure(hr, "Failed to read package log.");
 
+    hr = BuffReadNumber(pbData, cbData, &iData, (DWORD*)&executeAction.mspTarget.actionMsiProperty);
+    ExitOnFailure(hr, "Failed to read actionMsiProperty.");
+
     hr = BuffReadNumber(pbData, cbData, &iData, (DWORD*)&executeAction.mspTarget.uiLevel);
     ExitOnFailure(hr, "Failed to read UI level.");
 
+    hr = BuffReadNumber(pbData, cbData, &iData, (DWORD*)&executeAction.mspTarget.fDisableExternalUiHandler);
+    ExitOnFailure(hr, "Failed to read fDisableExternalUiHandler.");
+
     hr = BuffReadNumber(pbData, cbData, &iData, (DWORD*)&executeAction.mspTarget.action);
     ExitOnFailure(hr, "Failed to read action.");
 
diff --git a/src/engine/engine.vcxproj b/src/engine/engine.vcxproj
index 6fd9d64a..80b67b7d 100644
--- a/src/engine/engine.vcxproj
+++ b/src/engine/engine.vcxproj
@@ -2,8 +2,8 @@
 <!-- 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.4.0.15\build\WixToolset.BootstrapperCore.Native.props" Condition="Exists('..\..\packages\WixToolset.BootstrapperCore.Native.4.0.15\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')" />
+  <Import Project="..\..\packages\WixToolset.BootstrapperCore.Native.4.0.16\build\WixToolset.BootstrapperCore.Native.props" Condition="Exists('..\..\packages\WixToolset.BootstrapperCore.Native.4.0.16\build\WixToolset.BootstrapperCore.Native.props')" />
+  <Import Project="..\..\packages\WixToolset.DUtil.4.0.23\build\WixToolset.DUtil.props" Condition="Exists('..\..\packages\WixToolset.DUtil.4.0.23\build\WixToolset.DUtil.props')" />
 
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|Win32">
@@ -166,8 +166,8 @@ rc.exe -fo "$(OutDir)engine.res" "$(IntDir)engine.messages.rc"</Command>
     <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.4.0.15\build\WixToolset.BootstrapperCore.Native.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\WixToolset.BootstrapperCore.Native.4.0.15\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\WixToolset.BootstrapperCore.Native.4.0.16\build\WixToolset.BootstrapperCore.Native.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\WixToolset.BootstrapperCore.Native.4.0.16\build\WixToolset.BootstrapperCore.Native.props'))" />
+    <Error Condition="!Exists('..\..\packages\WixToolset.DUtil.4.0.23\build\WixToolset.DUtil.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\WixToolset.DUtil.4.0.23\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/engine/msiengine.cpp b/src/engine/msiengine.cpp
index 17571ac5..3f89dde9 100644
--- a/src/engine/msiengine.cpp
+++ b/src/engine/msiengine.cpp
@@ -4,7 +4,10 @@
 
 
 // constants
-
+#define BURNMSIINSTALL_PROPERTY_NAME L"BURNMSIINSTALL"
+#define BURNMSIMODIFY_PROPERTY_NAME L"BURNMSIMODIFY"
+#define BURNMSIREPAIR_PROPERTY_NAME L"BURNMSIREPAIR"
+#define BURNMSIUNINSTALL_PROPERTY_NAME L"BURNMSIUNINSTALL"
 
 // structs
 
@@ -79,10 +82,6 @@ extern "C" HRESULT MsiEngineParsePackageFromXml(
     hr = FileVersionFromStringEx(scz, 0, &pPackage->Msi.qwVersion);
     ExitOnFailure(hr, "Failed to parse @Version: %ls", scz);
 
-    // @DisplayInternalUI
-    hr = XmlGetYesNoAttribute(pixnMsiPackage, L"DisplayInternalUI", &pPackage->Msi.fDisplayInternalUI);
-    ExitOnFailure(hr, "Failed to get @DisplayInternalUI.");
-
     // @UpgradeCode
     hr = XmlGetAttributeEx(pixnMsiPackage, L"UpgradeCode", &pPackage->Msi.sczUpgradeCode);
     if (E_NOTFOUND != hr)
@@ -874,7 +873,7 @@ LExit:
 // PlanAdd - adds the calculated execute and rollback actions for the package.
 //
 extern "C" HRESULT MsiEnginePlanAddPackage(
-    __in BOOTSTRAPPER_DISPLAY display,
+    __in BURN_USER_EXPERIENCE* pUserExperience,
     __in BURN_PACKAGE* pPackage,
     __in BURN_PLAN* pPlan,
     __in BURN_LOGGING* pLog,
@@ -926,10 +925,13 @@ extern "C" HRESULT MsiEnginePlanAddPackage(
         pAction->type = BURN_EXECUTE_ACTION_TYPE_MSI_PACKAGE;
         pAction->msiPackage.pPackage = pPackage;
         pAction->msiPackage.action = pPackage->rollback;
-        pAction->msiPackage.uiLevel = MsiEngineCalculateInstallUiLevel(pPackage->Msi.fDisplayInternalUI, display, pAction->msiPackage.action);
         pAction->msiPackage.rgFeatures = rgRollbackFeatureActions;
         rgRollbackFeatureActions = NULL;
 
+        hr = MsiEngineCalculateInstallUiLevel(pUserExperience, pPackage->sczId, FALSE, pAction->msiPackage.action,
+            &pAction->msiPackage.actionMsiProperty, &pAction->msiPackage.uiLevel, &pAction->msiPackage.fDisableExternalUiHandler);
+        ExitOnFailure(hr, "Failed to get msi ui options.");
+
         LoggingSetPackageVariable(pPackage, NULL, TRUE, pLog, pVariables, &pAction->msiPackage.sczLogPath); // ignore errors.
         pAction->msiPackage.dwLoggingAttributes = pLog->dwAttributes;
 
@@ -949,10 +951,13 @@ extern "C" HRESULT MsiEnginePlanAddPackage(
         pAction->type = BURN_EXECUTE_ACTION_TYPE_MSI_PACKAGE;
         pAction->msiPackage.pPackage = pPackage;
         pAction->msiPackage.action = pPackage->execute;
-        pAction->msiPackage.uiLevel = MsiEngineCalculateInstallUiLevel(pPackage->Msi.fDisplayInternalUI, display, pAction->msiPackage.action);
         pAction->msiPackage.rgFeatures = rgFeatureActions;
         rgFeatureActions = NULL;
 
+        hr = MsiEngineCalculateInstallUiLevel(pUserExperience, pPackage->sczId, TRUE, pAction->msiPackage.action,
+            &pAction->msiPackage.actionMsiProperty, &pAction->msiPackage.uiLevel, &pAction->msiPackage.fDisableExternalUiHandler);
+        ExitOnFailure(hr, "Failed to get msi ui options.");
+
         LoggingSetPackageVariable(pPackage, NULL, FALSE, pLog, pVariables, &pAction->msiPackage.sczLogPath); // ignore errors.
         pAction->msiPackage.dwLoggingAttributes = pLog->dwAttributes;
     }
@@ -1073,7 +1078,6 @@ extern "C" HRESULT MsiEngineAddCompatiblePackage(
     }
 
     pCompatiblePackage->type = BURN_PACKAGE_TYPE_MSI;
-    pCompatiblePackage->Msi.fDisplayInternalUI = pPackage->Msi.fDisplayInternalUI;
 
     if (ppCompatiblePackage)
     {
@@ -1161,8 +1165,16 @@ extern "C" HRESULT MsiEngineExecutePackage(
     VariableSetNumeric(pVariables, BURN_BUNDLE_EXECUTE_PACKAGE_ACTION, pExecuteAction->msiPackage.action, TRUE);
     
     // Wire up the external UI handler and logging.
-    hr = WiuInitializeExternalUI(pfnMessageHandler, pExecuteAction->msiPackage.uiLevel, hwndParent, pvContext, fRollback, &context);
-    ExitOnFailure(hr, "Failed to initialize external UI handler.");
+    if (pExecuteAction->msiPackage.fDisableExternalUiHandler)
+    {
+        hr = WiuInitializeInternalUI(pExecuteAction->msiPackage.uiLevel, hwndParent, &context);
+        ExitOnFailure(hr, "Failed to initialize internal UI for MSI package.");
+    }
+    else
+    {
+        hr = WiuInitializeExternalUI(pfnMessageHandler, pExecuteAction->msiPackage.uiLevel, hwndParent, pvContext, fRollback, &context);
+        ExitOnFailure(hr, "Failed to initialize external UI handler.");
+    }
 
     if (pExecuteAction->msiPackage.sczLogPath && *pExecuteAction->msiPackage.sczLogPath)
     {
@@ -1191,6 +1203,12 @@ extern "C" HRESULT MsiEngineExecutePackage(
     hr = ConcatPatchProperty(pExecuteAction->msiPackage.pPackage, pExecuteAction->msiPackage.rgSlipstreamPatches, &sczObfuscatedProperties);
     ExitOnFailure(hr, "Failed to add patch properties to obfuscated argument string.");
 
+    hr = MsiEngineConcatActionProperty(pExecuteAction->msiPackage.actionMsiProperty, &sczProperties);
+    ExitOnFailure(hr, "Failed to add action property to argument string.");
+
+    hr = MsiEngineConcatActionProperty(pExecuteAction->msiPackage.actionMsiProperty, &sczObfuscatedProperties);
+    ExitOnFailure(hr, "Failed to add action property to obfuscated argument string.");
+
     LogId(REPORT_STANDARD, MSG_APPLYING_PACKAGE, LoggingRollbackOrExecute(fRollback), pExecuteAction->msiPackage.pPackage->sczId, LoggingActionStateToString(pExecuteAction->msiPackage.action), sczMsiPath, sczObfuscatedProperties ? sczObfuscatedProperties : L"");
 
     //
@@ -1300,6 +1318,40 @@ LExit:
     return hr;
 }
 
+extern "C" HRESULT MsiEngineConcatActionProperty(
+    __in BURN_MSI_PROPERTY actionMsiProperty,
+    __deref_out_z LPWSTR* psczProperties
+    )
+{
+    HRESULT hr = S_OK;
+    LPCWSTR wzPropertyName = NULL;
+
+    switch (actionMsiProperty)
+    {
+    case BURN_MSI_PROPERTY_INSTALL:
+        wzPropertyName = BURNMSIINSTALL_PROPERTY_NAME;
+        break;
+    case BURN_MSI_PROPERTY_MODIFY:
+        wzPropertyName = BURNMSIMODIFY_PROPERTY_NAME;
+        break;
+    case BURN_MSI_PROPERTY_REPAIR:
+        wzPropertyName = BURNMSIREPAIR_PROPERTY_NAME;
+        break;
+    case BURN_MSI_PROPERTY_UNINSTALL:
+        wzPropertyName = BURNMSIUNINSTALL_PROPERTY_NAME;
+        break;
+    }
+
+    if (wzPropertyName)
+    {
+        hr = StrAllocConcatFormattedSecure(psczProperties, L" %ls=1", wzPropertyName);
+        ExitOnFailure(hr, "Failed to add burn action property.");
+    }
+
+LExit:
+    return hr;
+}
+
 // The contents of psczProperties may be sensitive, should keep encrypted and SecureZeroFree.
 extern "C" HRESULT MsiEngineConcatProperties(
     __in_ecount(cProperties) BURN_MSIPROPERTY* rgProperties,
@@ -1363,31 +1415,36 @@ LExit:
     return hr;
 }
 
-extern "C" INSTALLUILEVEL MsiEngineCalculateInstallUiLevel(
-    __in BOOL fDisplayInternalUI,
-    __in BOOTSTRAPPER_DISPLAY display,
-    __in BOOTSTRAPPER_ACTION_STATE actionState
+extern "C" HRESULT MsiEngineCalculateInstallUiLevel(
+    __in BURN_USER_EXPERIENCE* pUserExperience,
+    __in LPCWSTR wzPackageId,
+    __in BOOL fExecute,
+    __in BOOTSTRAPPER_ACTION_STATE actionState,
+    __out BURN_MSI_PROPERTY* pActionMsiProperty,
+    __out INSTALLUILEVEL* pUiLevel,
+    __out BOOL* pfDisableExternalUiHandler
     )
 {
-    // Assume there will be no internal UI displayed.
-    INSTALLUILEVEL uiLevel = static_cast<INSTALLUILEVEL>(INSTALLUILEVEL_NONE | INSTALLUILEVEL_SOURCERESONLY);
+    *pUiLevel = static_cast<INSTALLUILEVEL>(INSTALLUILEVEL_NONE | INSTALLUILEVEL_SOURCERESONLY);
+    *pfDisableExternalUiHandler = FALSE;
 
-    // suppress internal UI during uninstall to mimic ARP and "msiexec /x" behavior
-    if (fDisplayInternalUI && BOOTSTRAPPER_ACTION_STATE_UNINSTALL != actionState && BOOTSTRAPPER_ACTION_STATE_REPAIR != actionState)
+    switch (actionState)
     {
-        switch (display)
-        {
-        case BOOTSTRAPPER_DISPLAY_FULL:
-            uiLevel = INSTALLUILEVEL_FULL;
-            break;
-
-        case BOOTSTRAPPER_DISPLAY_PASSIVE:
-            uiLevel = INSTALLUILEVEL_REDUCED;
-            break;
-        }
+    case BOOTSTRAPPER_ACTION_STATE_UNINSTALL:
+        *pActionMsiProperty = BURN_MSI_PROPERTY_UNINSTALL;
+        break;
+    case BOOTSTRAPPER_ACTION_STATE_REPAIR:
+        *pActionMsiProperty = BURN_MSI_PROPERTY_REPAIR;
+        break;
+    case BOOTSTRAPPER_ACTION_STATE_MODIFY:
+        *pActionMsiProperty = BURN_MSI_PROPERTY_MODIFY;
+        break;
+    default:
+        *pActionMsiProperty = BURN_MSI_PROPERTY_INSTALL;
+        break;
     }
 
-    return uiLevel;
+    return UserExperienceOnPlanMsiPackage(pUserExperience, wzPackageId, fExecute, actionState, pActionMsiProperty, pUiLevel, pfDisableExternalUiHandler);
 }
 
 
diff --git a/src/engine/msiengine.h b/src/engine/msiengine.h
index 2a8ebfd5..cbe80262 100644
--- a/src/engine/msiengine.h
+++ b/src/engine/msiengine.h
@@ -32,7 +32,7 @@ HRESULT MsiEnginePlanCalculatePackage(
     __out_opt BOOL* pfBARequestedCache
     );
 HRESULT MsiEnginePlanAddPackage(
-    __in BOOTSTRAPPER_DISPLAY display,
+    __in BURN_USER_EXPERIENCE* pUserExperience,
     __in BURN_PACKAGE* pPackage,
     __in BURN_PLAN* pPlan,
     __in BURN_LOGGING* pLog,
@@ -54,6 +54,10 @@ HRESULT MsiEngineExecutePackage(
     __in LPVOID pvContext,
     __out BOOTSTRAPPER_APPLY_RESTART* pRestart
     );
+HRESULT MsiEngineConcatActionProperty(
+    __in BURN_MSI_PROPERTY actionMsiProperty,
+    __deref_out_z LPWSTR* psczProperties
+    );
 HRESULT MsiEngineConcatProperties(
     __in_ecount(cProperties) BURN_MSIPROPERTY* rgProperties,
     __in DWORD cProperties,
@@ -62,10 +66,14 @@ HRESULT MsiEngineConcatProperties(
     __deref_out_z LPWSTR* psczProperties,
     __in BOOL fObfuscateHiddenVariables
     );
-INSTALLUILEVEL MsiEngineCalculateInstallUiLevel(
-    __in BOOL fDisplayInternalUI,
-    __in BOOTSTRAPPER_DISPLAY display,
-    __in BOOTSTRAPPER_ACTION_STATE actionState
+HRESULT MsiEngineCalculateInstallUiLevel(
+    __in BURN_USER_EXPERIENCE* pUserExperience,
+    __in LPCWSTR wzPackageId,
+    __in BOOL fExecute,
+    __in BOOTSTRAPPER_ACTION_STATE actionState,
+    __out BURN_MSI_PROPERTY* pActionMsiProperty,
+    __out INSTALLUILEVEL* pUiLevel,
+    __out BOOL* pfDisableExternalUiHandler
     );
 
 #if defined(__cplusplus)
diff --git a/src/engine/mspengine.cpp b/src/engine/mspengine.cpp
index 463799e6..0dddb366 100644
--- a/src/engine/mspengine.cpp
+++ b/src/engine/mspengine.cpp
@@ -44,7 +44,7 @@ static void DeterminePatchChainedTarget(
     __out BOOL* pfSlipstreamed
     );
 static HRESULT PlanTargetProduct(
-    __in BOOTSTRAPPER_DISPLAY display,
+    __in BURN_USER_EXPERIENCE* pUserExperience,
     __in BOOL fRollback,
     __in BURN_PLAN* pPlan,
     __in BURN_LOGGING* pLog,
@@ -73,10 +73,6 @@ extern "C" HRESULT MspEngineParsePackageFromXml(
     hr = XmlGetAttributeEx(pixnMspPackage, L"PatchXml", &pPackage->Msp.sczApplicabilityXml);
     ExitOnFailure(hr, "Failed to get @PatchXml.");
 
-    // @DisplayInternalUI
-    hr = XmlGetYesNoAttribute(pixnMspPackage, L"DisplayInternalUI", &pPackage->Msp.fDisplayInternalUI);
-    ExitOnFailure(hr, "Failed to get @DisplayInternalUI.");
-
     // Read properties.
     hr = MsiEngineParsePropertiesFromXml(pixnMspPackage, &pPackage->Msp.rgProperties, &pPackage->Msp.cProperties);
     ExitOnFailure(hr, "Failed to parse properties from XML.");
@@ -400,7 +396,7 @@ LExit:
 // PlanAdd - adds the calculated execute and rollback actions for the package.
 //
 extern "C" HRESULT MspEnginePlanAddPackage(
-    __in BOOTSTRAPPER_DISPLAY display,
+    __in BURN_USER_EXPERIENCE* pUserExperience,
     __in BURN_PACKAGE* pPackage,
     __in BURN_PLAN* pPlan,
     __in BURN_LOGGING* pLog,
@@ -437,13 +433,13 @@ extern "C" HRESULT MspEnginePlanAddPackage(
 
         if (BOOTSTRAPPER_ACTION_STATE_NONE != pTargetProduct->execute)
         {
-            hr = PlanTargetProduct(display, FALSE, pPlan, pLog, pVariables, pTargetProduct->execute, pPackage, pTargetProduct, hCacheEvent);
+            hr = PlanTargetProduct(pUserExperience, FALSE, pPlan, pLog, pVariables, pTargetProduct->execute, pPackage, pTargetProduct, hCacheEvent);
             ExitOnFailure(hr, "Failed to plan target product.");
         }
 
         if (BOOTSTRAPPER_ACTION_STATE_NONE != pTargetProduct->rollback)
         {
-            hr = PlanTargetProduct(display, TRUE, pPlan, pLog, pVariables, pTargetProduct->rollback, pPackage, pTargetProduct, hCacheEvent);
+            hr = PlanTargetProduct(pUserExperience, TRUE, pPlan, pLog, pVariables, pTargetProduct->rollback, pPackage, pTargetProduct, hCacheEvent);
             ExitOnFailure(hr, "Failed to plan rollack target product.");
         }
     }
@@ -464,7 +460,6 @@ extern "C" HRESULT MspEngineExecutePackage(
     )
 {
     HRESULT hr = S_OK;
-    INSTALLUILEVEL uiLevel = pExecuteAction->mspTarget.pPackage->Msp.fDisplayInternalUI ? INSTALLUILEVEL_DEFAULT : static_cast<INSTALLUILEVEL>(INSTALLUILEVEL_NONE | INSTALLUILEVEL_SOURCERESONLY);
     WIU_MSI_EXECUTE_CONTEXT context = { };
     WIU_RESTART restart = WIU_RESTART_NONE;
 
@@ -517,8 +512,16 @@ extern "C" HRESULT MspEngineExecutePackage(
     VariableSetNumeric(pVariables, BURN_BUNDLE_EXECUTE_PACKAGE_ACTION, pExecuteAction->mspTarget.action, TRUE);
 
     // Wire up the external UI handler and logging.
-    hr = WiuInitializeExternalUI(pfnMessageHandler, uiLevel, hwndParent, pvContext, fRollback, &context);
-    ExitOnFailure(hr, "Failed to initialize external UI handler.");
+    if (pExecuteAction->mspTarget.fDisableExternalUiHandler)
+    {
+        hr = WiuInitializeInternalUI(pExecuteAction->mspTarget.uiLevel, hwndParent, &context);
+        ExitOnFailure(hr, "Failed to initialize internal UI for MSP package.");
+    }
+    else
+    {
+        hr = WiuInitializeExternalUI(pfnMessageHandler, pExecuteAction->mspTarget.uiLevel, hwndParent, pvContext, fRollback, &context);
+        ExitOnFailure(hr, "Failed to initialize external UI handler.");
+    }
 
     //if (BURN_LOGGING_LEVEL_DEBUG == logLevel)
     //{
@@ -538,6 +541,12 @@ extern "C" HRESULT MspEngineExecutePackage(
     hr = MsiEngineConcatProperties(pExecuteAction->mspTarget.pPackage->Msp.rgProperties, pExecuteAction->mspTarget.pPackage->Msp.cProperties, pVariables, fRollback, &sczObfuscatedProperties, TRUE);
     ExitOnFailure(hr, "Failed to add properties to obfuscated argument string.");
 
+    hr = MsiEngineConcatActionProperty(pExecuteAction->mspTarget.actionMsiProperty, &sczProperties);
+    ExitOnFailure(hr, "Failed to add action property to argument string.");
+
+    hr = MsiEngineConcatActionProperty(pExecuteAction->mspTarget.actionMsiProperty, &sczObfuscatedProperties);
+    ExitOnFailure(hr, "Failed to add action property to obfuscated argument string.");
+
     LogId(REPORT_STANDARD, MSG_APPLYING_PATCH_PACKAGE, pExecuteAction->mspTarget.pPackage->sczId, LoggingActionStateToString(pExecuteAction->mspTarget.action), sczPatches, sczObfuscatedProperties, pExecuteAction->mspTarget.sczTargetProductCode);
 
     //
@@ -868,7 +877,7 @@ static void DeterminePatchChainedTarget(
 }
 
 static HRESULT PlanTargetProduct(
-    __in BOOTSTRAPPER_DISPLAY display,
+    __in BURN_USER_EXPERIENCE* pUserExperience,
     __in BOOL fRollback,
     __in BURN_PLAN* pPlan,
     __in BURN_LOGGING* pLog,
@@ -920,12 +929,15 @@ static HRESULT PlanTargetProduct(
         pAction->mspTarget.action = actionState;
         pAction->mspTarget.pPackage = pPackage;
         pAction->mspTarget.fPerMachineTarget = (MSIINSTALLCONTEXT_MACHINE == pTargetProduct->context);
-        pAction->mspTarget.uiLevel = MsiEngineCalculateInstallUiLevel(pPackage->Msp.fDisplayInternalUI, display, pAction->mspTarget.action);
         pAction->mspTarget.pChainedTargetPackage = pTargetProduct->pChainedTargetPackage;
         pAction->mspTarget.fSlipstream = pTargetProduct->fSlipstream;
         hr = StrAllocString(&pAction->mspTarget.sczTargetProductCode, pTargetProduct->wzTargetProductCode, 0);
         ExitOnFailure(hr, "Failed to copy target product code.");
 
+        hr = MsiEngineCalculateInstallUiLevel(pUserExperience, pPackage->sczId, !fRollback, pAction->mspTarget.action,
+            &pAction->mspTarget.actionMsiProperty, &pAction->mspTarget.uiLevel, &pAction->mspTarget.fDisableExternalUiHandler);
+        ExitOnFailure(hr, "Failed to get msp ui options.");
+
         // If this is a per-machine target product, then the plan needs to be per-machine as well.
         if (pAction->mspTarget.fPerMachineTarget)
         {
diff --git a/src/engine/mspengine.h b/src/engine/mspengine.h
index 9f585720..0f323e57 100644
--- a/src/engine/mspengine.h
+++ b/src/engine/mspengine.h
@@ -38,7 +38,7 @@ HRESULT MspEnginePlanCalculatePackage(
     __out_opt BOOL* pfBARequestedCache
     );
 HRESULT MspEnginePlanAddPackage(
-    __in BOOTSTRAPPER_DISPLAY display,
+    __in BURN_USER_EXPERIENCE* pUserExperience,
     __in BURN_PACKAGE* pPackage,
     __in BURN_PLAN* pPlan,
     __in BURN_LOGGING* pLog,
diff --git a/src/engine/package.h b/src/engine/package.h
index c295378e..05965a16 100644
--- a/src/engine/package.h
+++ b/src/engine/package.h
@@ -239,7 +239,6 @@ typedef struct _BURN_PACKAGE
             DWORD64 qwVersion;
             LPWSTR sczInstalledProductCode;
             DWORD64 qwInstalledVersion;
-            BOOL fDisplayInternalUI;
             LPWSTR sczUpgradeCode;
 
             BURN_MSIPROPERTY* rgProperties;
@@ -261,7 +260,6 @@ typedef struct _BURN_PACKAGE
         {
             LPWSTR sczPatchCode;
             LPWSTR sczApplicabilityXml;
-            BOOL fDisplayInternalUI;
 
             BURN_MSIPROPERTY* rgProperties;
             DWORD cProperties;
diff --git a/src/engine/packages.config b/src/engine/packages.config
index e9b2d190..251df9d0 100644
--- a/src/engine/packages.config
+++ b/src/engine/packages.config
@@ -1,6 +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="4.0.15" targetFramework="native" />
-  <package id="WixToolset.DUtil" version="4.0.18" targetFramework="native" />
+  <package id="WixToolset.BootstrapperCore.Native" version="4.0.16" targetFramework="native" />
+  <package id="WixToolset.DUtil" version="4.0.23" targetFramework="native" />
 </packages>
\ No newline at end of file
diff --git a/src/engine/plan.cpp b/src/engine/plan.cpp
index 01c7a31d..02f5be23 100644
--- a/src/engine/plan.cpp
+++ b/src/engine/plan.cpp
@@ -31,7 +31,6 @@ static HRESULT ProcessPackage(
     __in BURN_PACKAGE* pPackage,
     __in BURN_LOGGING* pLog,
     __in BURN_VARIABLES* pVariables,
-    __in BOOTSTRAPPER_DISPLAY display,
     __in BOOTSTRAPPER_RELATION_TYPE relationType,
     __in_z_opt LPCWSTR wzLayoutDirectory,
     __inout HANDLE* phSyncpointEvent,
@@ -473,7 +472,6 @@ extern "C" HRESULT PlanPackages(
     __in BURN_LOGGING* pLog,
     __in BURN_VARIABLES* pVariables,
     __in BOOL fBundleInstalled,
-    __in BOOTSTRAPPER_DISPLAY display,
     __in BOOTSTRAPPER_RELATION_TYPE relationType,
     __in_z_opt LPCWSTR wzLayoutDirectory,
     __inout HANDLE* phSyncpointEvent
@@ -511,7 +509,7 @@ extern "C" HRESULT PlanPackages(
             }
         }
 
-        hr = ProcessPackage(fBundlePerMachine, NULL, pUX, pPlan, pPackage, pLog, pVariables, display, relationType, wzLayoutDirectory, phSyncpointEvent, &pRollbackBoundary, &nonpermanentPackageIndices);
+        hr = ProcessPackage(fBundlePerMachine, NULL, pUX, pPlan, pPackage, pLog, pVariables, relationType, wzLayoutDirectory, phSyncpointEvent, &pRollbackBoundary, &nonpermanentPackageIndices);
         ExitOnFailure(hr, "Failed to process package.");
 
         // Attempt to remove orphaned packages during uninstall. Currently only MSI packages are supported and should not require source.
@@ -536,7 +534,7 @@ extern "C" HRESULT PlanPackages(
             ExitOnFailure(hr, "Failed to copy installed ProductCode");
 
             // Process the compatible MSI package like any other.
-            hr = ProcessPackage(fBundlePerMachine, pPackage, pUX, pPlan, pCompatiblePackage, pLog, pVariables, display, relationType, wzLayoutDirectory, phSyncpointEvent, &pRollbackBoundary, &nonpermanentPackageIndices);
+            hr = ProcessPackage(fBundlePerMachine, pPackage, pUX, pPlan, pCompatiblePackage, pLog, pVariables, relationType, wzLayoutDirectory, phSyncpointEvent, &pRollbackBoundary, &nonpermanentPackageIndices);
             ExitOnFailure(hr, "Failed to process compatible package.");
 
             if (BOOTSTRAPPER_ACTION_STATE_UNINSTALL == pCompatiblePackage->execute)
@@ -787,7 +785,6 @@ extern "C" HRESULT PlanPassThroughBundle(
     __in BURN_PLAN* pPlan,
     __in BURN_LOGGING* pLog,
     __in BURN_VARIABLES* pVariables,
-    __in BOOTSTRAPPER_DISPLAY display,
     __in BOOTSTRAPPER_RELATION_TYPE relationType,
     __inout HANDLE* phSyncpointEvent
     )
@@ -797,7 +794,7 @@ extern "C" HRESULT PlanPassThroughBundle(
     BURN_ROLLBACK_BOUNDARY* pRollbackBoundary = NULL;
 
     // Plan passthrough package.
-    hr = ProcessPackage(fBundlePerMachine, NULL, pUX, pPlan, pPackage, pLog, pVariables, display, relationType, NULL, phSyncpointEvent, &pRollbackBoundary, NULL);
+    hr = ProcessPackage(fBundlePerMachine, NULL, pUX, pPlan, pPackage, pLog, pVariables, relationType, NULL, phSyncpointEvent, &pRollbackBoundary, NULL);
     ExitOnFailure(hr, "Failed to process passthrough package.");
 
     // If we still have an open rollback boundary, complete it.
@@ -821,7 +818,6 @@ extern "C" HRESULT PlanUpdateBundle(
     __in BURN_PLAN* pPlan,
     __in BURN_LOGGING* pLog,
     __in BURN_VARIABLES* pVariables,
-    __in BOOTSTRAPPER_DISPLAY display,
     __in BOOTSTRAPPER_RELATION_TYPE relationType,
     __inout HANDLE* phSyncpointEvent
     )
@@ -831,7 +827,7 @@ extern "C" HRESULT PlanUpdateBundle(
     BURN_ROLLBACK_BOUNDARY* pRollbackBoundary = NULL;
 
     // Plan update package.
-    hr = ProcessPackage(fBundlePerMachine, NULL, pUX, pPlan, pPackage, pLog, pVariables, display, relationType, NULL, phSyncpointEvent, &pRollbackBoundary, NULL);
+    hr = ProcessPackage(fBundlePerMachine, NULL, pUX, pPlan, pPackage, pLog, pVariables, relationType, NULL, phSyncpointEvent, &pRollbackBoundary, NULL);
     ExitOnFailure(hr, "Failed to process update package.");
 
     // If we still have an open rollback boundary, complete it.
@@ -857,7 +853,6 @@ static HRESULT ProcessPackage(
     __in BURN_PACKAGE* pPackage,
     __in BURN_LOGGING* pLog,
     __in BURN_VARIABLES* pVariables,
-    __in BOOTSTRAPPER_DISPLAY display,
     __in BOOTSTRAPPER_RELATION_TYPE relationType,
     __in_z_opt LPCWSTR wzLayoutDirectory,
     __inout HANDLE* phSyncpointEvent,
@@ -911,7 +906,7 @@ static HRESULT ProcessPackage(
                 }
             }
 
-            hr = PlanExecutePackage(fBundlePerMachine, display, pUX, pPlan, pPackage, pLog, pVariables, phSyncpointEvent);
+            hr = PlanExecutePackage(fBundlePerMachine, pUX, pPlan, pPackage, pLog, pVariables, phSyncpointEvent);
             ExitOnFailure(hr, "Failed to plan execute package.");
 
             if (pPackage->fUninstallable && pNonpermanentPackageIndices)
@@ -1091,7 +1086,6 @@ LExit:
 
 extern "C" HRESULT PlanExecutePackage(
     __in BOOL fPerMachine,
-    __in BOOTSTRAPPER_DISPLAY display,
     __in BURN_USER_EXPERIENCE* pUserExperience,
     __in BURN_PLAN* pPlan,
     __in BURN_PACKAGE* pPackage,
@@ -1156,11 +1150,11 @@ extern "C" HRESULT PlanExecutePackage(
         break;
 
     case BURN_PACKAGE_TYPE_MSI:
-        hr = MsiEnginePlanAddPackage(display, pPackage, pPlan, pLog, pVariables, *phSyncpointEvent, pPackage->fAcquire);
+        hr = MsiEnginePlanAddPackage(pUserExperience, pPackage, pPlan, pLog, pVariables, *phSyncpointEvent, pPackage->fAcquire);
         break;
 
     case BURN_PACKAGE_TYPE_MSP:
-        hr = MspEnginePlanAddPackage(display, pPackage, pPlan, pLog, pVariables, *phSyncpointEvent, pPackage->fAcquire);
+        hr = MspEnginePlanAddPackage(pUserExperience, pPackage, pPlan, pLog, pVariables, *phSyncpointEvent, pPackage->fAcquire);
         break;
 
     case BURN_PACKAGE_TYPE_MSU:
@@ -3074,7 +3068,7 @@ static void ExecuteActionLog(
         break;
 
     case BURN_EXECUTE_ACTION_TYPE_MSI_PACKAGE:
-        LogStringLine(REPORT_STANDARD, "%ls action[%u]: MSI_PACKAGE package id: %ls, action: %hs, ui level: %u, log path: %ls, logging attrib: %u", wzBase, iAction, pAction->msiPackage.pPackage->sczId, LoggingActionStateToString(pAction->msiPackage.action), pAction->msiPackage.uiLevel, pAction->msiPackage.sczLogPath, pAction->msiPackage.dwLoggingAttributes);
+        LogStringLine(REPORT_STANDARD, "%ls action[%u]: MSI_PACKAGE package id: %ls, action: %hs, action msi property: %u, ui level: %u, disable externaluihandler: %ls, log path: %ls, logging attrib: %u", wzBase, iAction, pAction->msiPackage.pPackage->sczId, LoggingActionStateToString(pAction->msiPackage.action), pAction->msiPackage.actionMsiProperty, pAction->msiPackage.uiLevel, pAction->msiPackage.fDisableExternalUiHandler ? L"yes" : L"no", pAction->msiPackage.sczLogPath, pAction->msiPackage.dwLoggingAttributes);
         for (DWORD j = 0; j < pAction->msiPackage.cPatches; ++j)
         {
             LogStringLine(REPORT_STANDARD, "      Patch[%u]: order: %u, msp package id: %ls", j, pAction->msiPackage.rgOrderedPatches->dwOrder, pAction->msiPackage.rgOrderedPatches[j].dwOrder, pAction->msiPackage.rgOrderedPatches[j].pPackage->sczId);
@@ -3082,7 +3076,7 @@ static void ExecuteActionLog(
         break;
 
     case BURN_EXECUTE_ACTION_TYPE_MSP_TARGET:
-        LogStringLine(REPORT_STANDARD, "%ls action[%u]: MSP_TARGET package id: %ls, action: %hs, target product code: %ls, target per-machine: %ls, ui level: %u, log path: %ls", wzBase, iAction, pAction->mspTarget.pPackage->sczId, LoggingActionStateToString(pAction->mspTarget.action), pAction->mspTarget.sczTargetProductCode, pAction->mspTarget.fPerMachineTarget ? L"yes" : L"no", pAction->mspTarget.uiLevel, pAction->mspTarget.sczLogPath);
+        LogStringLine(REPORT_STANDARD, "%ls action[%u]: MSP_TARGET package id: %ls, action: %hs, target product code: %ls, target per-machine: %ls, action msi property: %u, ui level: %u, disable externaluihandler: %ls, log path: %ls", wzBase, iAction, pAction->mspTarget.pPackage->sczId, LoggingActionStateToString(pAction->mspTarget.action), pAction->mspTarget.sczTargetProductCode, pAction->mspTarget.fPerMachineTarget ? L"yes" : L"no", pAction->mspTarget.actionMsiProperty, pAction->mspTarget.uiLevel, pAction->mspTarget.fDisableExternalUiHandler ? L"yes" : L"no", pAction->mspTarget.sczLogPath);
         for (DWORD j = 0; j < pAction->mspTarget.cOrderedPatches; ++j)
         {
             LogStringLine(REPORT_STANDARD, "      Patch[%u]: order: %u, msp package id: %ls", j, pAction->mspTarget.rgOrderedPatches[j].dwOrder, pAction->mspTarget.rgOrderedPatches[j].pPackage->sczId);
diff --git a/src/engine/plan.h b/src/engine/plan.h
index 54cfe59d..89f4b4bf 100644
--- a/src/engine/plan.h
+++ b/src/engine/plan.h
@@ -245,7 +245,9 @@ typedef struct _BURN_EXECUTE_ACTION
             BURN_PACKAGE* pPackage;
             LPWSTR sczLogPath;
             DWORD dwLoggingAttributes;
+            BURN_MSI_PROPERTY actionMsiProperty;
             INSTALLUILEVEL uiLevel;
+            BOOL fDisableExternalUiHandler;
             BOOTSTRAPPER_ACTION_STATE action;
 
             BOOTSTRAPPER_FEATURE_ACTION* rgFeatures;
@@ -262,7 +264,9 @@ typedef struct _BURN_EXECUTE_ACTION
             BOOL fSlipstream;
             BOOL fPerMachineTarget;
             LPWSTR sczLogPath;
+            BURN_MSI_PROPERTY actionMsiProperty;
             INSTALLUILEVEL uiLevel;
+            BOOL fDisableExternalUiHandler;
             BOOTSTRAPPER_ACTION_STATE action;
 
             BURN_ORDERED_PATCHES* rgOrderedPatches;
@@ -404,7 +408,6 @@ HRESULT PlanPackages(
     __in BURN_LOGGING* pLog,
     __in BURN_VARIABLES* pVariables,
     __in BOOL fBundleInstalled,
-    __in BOOTSTRAPPER_DISPLAY display,
     __in BOOTSTRAPPER_RELATION_TYPE relationType,
     __in_z_opt LPCWSTR wzLayoutDirectory,
     __inout HANDLE* phSyncpointEvent
@@ -423,7 +426,6 @@ HRESULT PlanPassThroughBundle(
     __in BURN_PLAN* pPlan,
     __in BURN_LOGGING* pLog,
     __in BURN_VARIABLES* pVariables,
-    __in BOOTSTRAPPER_DISPLAY display,
     __in BOOTSTRAPPER_RELATION_TYPE relationType,
     __inout HANDLE* phSyncpointEvent
     );
@@ -433,7 +435,6 @@ HRESULT PlanUpdateBundle(
     __in BURN_PLAN* pPlan,
     __in BURN_LOGGING* pLog,
     __in BURN_VARIABLES* pVariables,
-    __in BOOTSTRAPPER_DISPLAY display,
     __in BOOTSTRAPPER_RELATION_TYPE relationType,
     __inout HANDLE* phSyncpointEvent
     );
@@ -452,7 +453,6 @@ HRESULT PlanCachePackage(
     );
 HRESULT PlanExecutePackage(
     __in BOOL fPerMachine,
-    __in BOOTSTRAPPER_DISPLAY display,
     __in BURN_USER_EXPERIENCE* pUserExperience,
     __in BURN_PLAN* pPlan,
     __in BURN_PACKAGE* pPackage,
diff --git a/src/engine/userexperience.cpp b/src/engine/userexperience.cpp
index 24fc1ec7..dd59a431 100644
--- a/src/engine/userexperience.cpp
+++ b/src/engine/userexperience.cpp
@@ -97,7 +97,7 @@ extern "C" HRESULT UserExperienceLoad(
     args.pCommand = pCommand;
     args.pfnBootstrapperEngineProc = EngineForApplicationProc;
     args.pvBootstrapperEngineProcContext = pEngineContext;
-    args.qwEngineAPIVersion = MAKEQWORDVERSION(0, 0, 0, 7); // TODO: need to decide whether to keep this, and if so when to update it.
+    args.qwEngineAPIVersion = MAKEQWORDVERSION(2020, 5, 14, 0);
 
     results.cbSize = sizeof(BOOTSTRAPPER_CREATE_RESULTS);
 
@@ -1211,7 +1211,9 @@ EXTERN_C BAAPI UserExperienceOnExecutePackageBegin(
     __in BURN_USER_EXPERIENCE* pUserExperience,
     __in_z LPCWSTR wzPackageId,
     __in BOOL fExecute,
-    __in BOOTSTRAPPER_ACTION_STATE action
+    __in BOOTSTRAPPER_ACTION_STATE action,
+    __in INSTALLUILEVEL uiLevel,
+    __in BOOL fDisableExternalUiHandler
     )
 {
     HRESULT hr = S_OK;
@@ -1222,6 +1224,8 @@ EXTERN_C BAAPI UserExperienceOnExecutePackageBegin(
     args.wzPackageId = wzPackageId;
     args.fExecute = fExecute;
     args.action = action;
+    args.uiLevel = uiLevel;
+    args.fDisableExternalUiHandler = fDisableExternalUiHandler;
 
     results.cbSize = sizeof(results);
 
@@ -1526,6 +1530,45 @@ LExit:
     return hr;
 }
 
+EXTERN_C BAAPI UserExperienceOnPlanMsiPackage(
+    __in BURN_USER_EXPERIENCE* pUserExperience,
+    __in_z LPCWSTR wzPackageId,
+    __in BOOL fExecute,
+    __in BOOTSTRAPPER_ACTION_STATE action,
+    __inout BURN_MSI_PROPERTY* pActionMsiProperty,
+    __inout INSTALLUILEVEL* pUiLevel,
+    __inout BOOL* pfDisableExternalUiHandler
+    )
+{
+    HRESULT hr = S_OK;
+    BA_ONPLANMSIPACKAGE_ARGS args = { };
+    BA_ONPLANMSIPACKAGE_RESULTS results = { };
+
+    args.cbSize = sizeof(args);
+    args.wzPackageId = wzPackageId;
+    args.fExecute = fExecute;
+    args.action = action;
+
+    results.cbSize = sizeof(results);
+    results.actionMsiProperty = *pActionMsiProperty;
+    results.uiLevel = *pUiLevel;
+    results.fDisableExternalUiHandler = *pfDisableExternalUiHandler;
+
+    hr = pUserExperience->pfnBAProc(BOOTSTRAPPER_APPLICATION_MESSAGE_ONPLANMSIPACKAGE, &args, &results, pUserExperience->pvBAProcContext);
+    ExitOnFailure(hr, "BA OnPlanMsiPackage failed.");
+
+    if (results.fCancel)
+    {
+        hr = HRESULT_FROM_WIN32(ERROR_INSTALL_USEREXIT);
+    }
+    *pActionMsiProperty = results.actionMsiProperty;
+    *pUiLevel = results.uiLevel;
+    *pfDisableExternalUiHandler = results.fDisableExternalUiHandler;
+
+LExit:
+    return hr;
+}
+
 EXTERN_C BAAPI UserExperienceOnPlanPackageBegin(
     __in BURN_USER_EXPERIENCE* pUserExperience,
     __in_z LPCWSTR wzPackageId,
diff --git a/src/engine/userexperience.h b/src/engine/userexperience.h
index 7d2b743d..a5a97ffa 100644
--- a/src/engine/userexperience.h
+++ b/src/engine/userexperience.h
@@ -294,7 +294,9 @@ BAAPI UserExperienceOnExecutePackageBegin(
     __in BURN_USER_EXPERIENCE* pUserExperience,
     __in_z LPCWSTR wzPackageId,
     __in BOOL fExecute,
-    __in BOOTSTRAPPER_ACTION_STATE action
+    __in BOOTSTRAPPER_ACTION_STATE action,
+    __in INSTALLUILEVEL uiLevel,
+    __in BOOL fDisableExternalUiHandler
     );
 BAAPI UserExperienceOnExecutePackageComplete(
     __in BURN_USER_EXPERIENCE* pUserExperience,
@@ -354,6 +356,15 @@ BAAPI UserExperienceOnPlanMsiFeature(
     __in_z LPCWSTR wzFeatureId,
     __inout BOOTSTRAPPER_FEATURE_STATE* pRequestedState
     );
+BAAPI UserExperienceOnPlanMsiPackage(
+    __in BURN_USER_EXPERIENCE* pUserExperience,
+    __in_z LPCWSTR wzPackageId,
+    __in BOOL fExecute,
+    __in BOOTSTRAPPER_ACTION_STATE action,
+    __inout BURN_MSI_PROPERTY* pActionMsiProperty,
+    __inout INSTALLUILEVEL* pUiLevel,
+    __inout BOOL* pfDisableExternalUiHandler
+    );
 BAAPI UserExperienceOnPlanPackageBegin(
     __in BURN_USER_EXPERIENCE* pUserExperience,
     __in_z LPCWSTR wzPackageId,
diff --git a/src/stub/packages.config b/src/stub/packages.config
index 478af2c6..e8115bfa 100644
--- a/src/stub/packages.config
+++ b/src/stub/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Nerdbank.GitVersioning" version="2.1.65" targetFramework="native" developmentDependency="true" />
-  <package id="WixToolset.DUtil" version="4.0.18" targetFramework="native" />
+  <package id="WixToolset.DUtil" version="4.0.23" targetFramework="native" />
 </packages>
\ No newline at end of file
diff --git a/src/stub/stub.vcxproj b/src/stub/stub.vcxproj
index 7af42fa9..ce43e0e6 100644
--- a/src/stub/stub.vcxproj
+++ b/src/stub/stub.vcxproj
@@ -2,7 +2,7 @@
 <!-- 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.DUtil.4.0.18\build\WixToolset.DUtil.props" Condition="Exists('..\..\packages\WixToolset.DUtil.4.0.18\build\WixToolset.DUtil.props')" />
+  <Import Project="..\..\packages\WixToolset.DUtil.4.0.23\build\WixToolset.DUtil.props" Condition="Exists('..\..\packages\WixToolset.DUtil.4.0.23\build\WixToolset.DUtil.props')" />
 
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|Win32">
@@ -94,6 +94,6 @@
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable 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.2.1.65\build\Nerdbank.GitVersioning.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\Nerdbank.GitVersioning.2.1.65\build\Nerdbank.GitVersioning.targets'))" />
-    <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\WixToolset.DUtil.4.0.23\build\WixToolset.DUtil.props')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\WixToolset.DUtil.4.0.23\build\WixToolset.DUtil.props'))" />
   </Target>
 </Project>