App-configurable compatibility options implementation: CompatibilityOptions

BuildAll.ps1

@@ -277,14 +277,19 @@ Try {
         Copy-Item -Path "$nuSpecsPath\WindowsAppSDK-Nuget-Native.props" -Destination "$BasePath\build\native\Microsoft.WindowsAppSDK.Foundation.props"
         Copy-Item -Path "$nuSpecsPath\WindowsAppSDK-Nuget-Native.C.props" -Destination "$BasePath\build\native"
         Copy-Item -Path "$nuSpecsPath\WindowsAppSDK-Nuget-Native.WinRt.props" -Destination "$BasePath\build\native"
+        Copy-Item -Path "$nuSpecsPath\WindowsAppSDK-Nuget-Native.AutoInitializer.targets" -Destination "$BasePath\build\native"
         Copy-Item -Path "$nuSpecsPath\WindowsAppSDK-Nuget-Native.Bootstrap.targets" -Destination "$BasePath\build\native"
+        Copy-Item -Path "$nuSpecsPath\WindowsAppSDK-Nuget-Native.CompatibilitySetter.targets" -Destination "$BasePath\build\native"
         Copy-Item -Path "$nuSpecsPath\WindowsAppSDK-Nuget-Native.DeploymentManager.targets" -Destination "$BasePath\build\native"
         Copy-Item -Path "$nuSpecsPath\WindowsAppSDK-Nuget-Native.UndockedRegFreeWinRT.targets" -Destination "$BasePath\build\native"
 
         Copy-Item -Path "$nuSpecsPath\Microsoft.WindowsAppSDK.Foundation.targets" -Destination "$BasePath\build"
         Copy-Item -Path "$nuSpecsPath\Microsoft.WindowsAppSDK.Foundation.props" -Destination "$BasePath\build"
+        Copy-Item -Path "$nuSpecsPath\Microsoft.WindowsAppSDK.AutoInitializer.CS.targets" -Destination "$BasePath\build"
+        Copy-Item -Path "$nuSpecsPath\Microsoft.WindowsAppSDK.AutoInitializerCommon.targets" -Destination "$BasePath\build"
         Copy-Item -Path "$nuSpecsPath\Microsoft.WindowsAppSDK.Bootstrap.CS.targets" -Destination "$BasePath\build"
         Copy-Item -Path "$nuSpecsPath\Microsoft.WindowsAppSDK.BootstrapCommon.targets" -Destination "$BasePath\build"
+        Copy-Item -Path "$nuSpecsPath\Microsoft.WindowsAppSDK.CompatibilitySetter.CS.targets" -Destination "$BasePath\build"
         Copy-Item -Path "$nuSpecsPath\Microsoft.WindowsAppSDK.DeploymentManager.CS.targets" -Destination "$BasePath\build"
         Copy-Item -Path "$nuSpecsPath\Microsoft.WindowsAppSDK.DeploymentManagerCommon.targets" -Destination "$BasePath\build"
         Copy-Item -Path "$nuSpecsPath\Microsoft.WindowsAppSDK.UndockedRegFreeWinRT.CS.targets" -Destination "$BasePath\build"

WindowsAppRuntime.sln

@@ -577,6 +577,20 @@ EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "BaseNotifications", "dev\Notifications\BaseNotifications\BaseNotifications.vcxitems", "{2BD7A1BB-D3D8-484F-9180-409D781DCCF9}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Microsoft.Windows.BadgeNotifications.Projection", "dev\Projections\CS\Microsoft.Windows.BadgeNotifications.Projection\Microsoft.Windows.BadgeNotifications.Projection.csproj", "{A243A58D-ABD7-4520-8C71-F492247B7B92}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "CompatibilityOptions", "dev\CompatibilityOptions\CompatibilityOptions.vcxitems", "{1F7B9E9F-9987-490B-9E6E-093C7F63FEC4}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "CompatibilityOptions", "CompatibilityOptions", "{35972D8A-F47E-4875-A341-E8C25DB7A098}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "CompatibilityTests", "test\Compatibility\CompatibilityTests\CompatibilityTests.vcxproj", "{040BB64B-012E-4E4F-BB02-E85EF46D3475}"
+	ProjectSection(ProjectDependencies) = postProject
+		{F76B776E-86F5-48C5-8FC7-D2795ECC9746} = {F76B776E-86F5-48C5-8FC7-D2795ECC9746}
+	EndProjectSection
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Compatibility", "Compatibility", "{423E7BAC-0125-46F4-944D-E8F138B3C654}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Test_CompatibilitySetter_CPP", "test\Compatibility\Test_CompatibilitySetter_CPP\Test_CompatibilitySetter_CPP.vcxproj", "{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Test_CompatibilitySetter_CS", "test\Compatibility\Test_CompatibilitySetter_CS\Test_CompatibilitySetter_CS.csproj", "{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -2030,6 +2044,54 @@ Global
 		{A243A58D-ABD7-4520-8C71-F492247B7B92}.Release|x64.Build.0 = Release|Any CPU
 		{A243A58D-ABD7-4520-8C71-F492247B7B92}.Release|x86.ActiveCfg = Release|Any CPU
 		{A243A58D-ABD7-4520-8C71-F492247B7B92}.Release|x86.Build.0 = Release|Any CPU
+		{040BB64B-012E-4E4F-BB02-E85EF46D3475}.Debug|Any CPU.ActiveCfg = Debug|x64
+		{040BB64B-012E-4E4F-BB02-E85EF46D3475}.Debug|Any CPU.Build.0 = Debug|x64
+		{040BB64B-012E-4E4F-BB02-E85EF46D3475}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{040BB64B-012E-4E4F-BB02-E85EF46D3475}.Debug|ARM64.Build.0 = Debug|ARM64
+		{040BB64B-012E-4E4F-BB02-E85EF46D3475}.Debug|x64.ActiveCfg = Debug|x64
+		{040BB64B-012E-4E4F-BB02-E85EF46D3475}.Debug|x64.Build.0 = Debug|x64
+		{040BB64B-012E-4E4F-BB02-E85EF46D3475}.Debug|x86.ActiveCfg = Debug|Win32
+		{040BB64B-012E-4E4F-BB02-E85EF46D3475}.Debug|x86.Build.0 = Debug|Win32
+		{040BB64B-012E-4E4F-BB02-E85EF46D3475}.Release|Any CPU.ActiveCfg = Release|x64
+		{040BB64B-012E-4E4F-BB02-E85EF46D3475}.Release|Any CPU.Build.0 = Release|x64
+		{040BB64B-012E-4E4F-BB02-E85EF46D3475}.Release|ARM64.ActiveCfg = Release|ARM64
+		{040BB64B-012E-4E4F-BB02-E85EF46D3475}.Release|ARM64.Build.0 = Release|ARM64
+		{040BB64B-012E-4E4F-BB02-E85EF46D3475}.Release|x64.ActiveCfg = Release|x64
+		{040BB64B-012E-4E4F-BB02-E85EF46D3475}.Release|x64.Build.0 = Release|x64
+		{040BB64B-012E-4E4F-BB02-E85EF46D3475}.Release|x86.ActiveCfg = Release|Win32
+		{040BB64B-012E-4E4F-BB02-E85EF46D3475}.Release|x86.Build.0 = Release|Win32
+		{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA}.Debug|Any CPU.ActiveCfg = Debug|x64
+		{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA}.Debug|Any CPU.Build.0 = Debug|x64
+		{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA}.Debug|ARM64.Build.0 = Debug|ARM64
+		{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA}.Debug|x64.ActiveCfg = Debug|x64
+		{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA}.Debug|x64.Build.0 = Debug|x64
+		{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA}.Debug|x86.ActiveCfg = Debug|Win32
+		{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA}.Debug|x86.Build.0 = Debug|Win32
+		{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA}.Release|Any CPU.ActiveCfg = Release|x64
+		{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA}.Release|Any CPU.Build.0 = Release|x64
+		{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA}.Release|ARM64.ActiveCfg = Release|ARM64
+		{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA}.Release|ARM64.Build.0 = Release|ARM64
+		{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA}.Release|x64.ActiveCfg = Release|x64
+		{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA}.Release|x64.Build.0 = Release|x64
+		{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA}.Release|x86.ActiveCfg = Release|Win32
+		{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA}.Release|x86.Build.0 = Release|Win32
+		{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9}.Debug|ARM64.ActiveCfg = Debug|ARM64
+		{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9}.Debug|ARM64.Build.0 = Debug|ARM64
+		{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9}.Debug|x64.ActiveCfg = Debug|x64
+		{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9}.Debug|x64.Build.0 = Debug|x64
+		{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9}.Debug|x86.ActiveCfg = Debug|x86
+		{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9}.Debug|x86.Build.0 = Debug|x86
+		{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9}.Release|Any CPU.Build.0 = Release|Any CPU
+		{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9}.Release|ARM64.ActiveCfg = Release|ARM64
+		{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9}.Release|ARM64.Build.0 = Release|ARM64
+		{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9}.Release|x64.ActiveCfg = Release|x64
+		{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9}.Release|x64.Build.0 = Release|x64
+		{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9}.Release|x86.ActiveCfg = Release|x86
+		{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9}.Release|x86.Build.0 = Release|x86
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -2215,6 +2277,12 @@ Global
 		{85D111C7-B720-4E19-A56D-03C87B953983} = {50205ED9-0E08-4878-B124-9AC0EBA138D6}
 		{2BD7A1BB-D3D8-484F-9180-409D781DCCF9} = {586EA218-74C8-420B-B47E-0B307AA4B82D}
 		{A243A58D-ABD7-4520-8C71-F492247B7B92} = {716C26A0-E6B0-4981-8412-D14A4D410531}
+		{1F7B9E9F-9987-490B-9E6E-093C7F63FEC4} = {35972D8A-F47E-4875-A341-E8C25DB7A098}
+		{35972D8A-F47E-4875-A341-E8C25DB7A098} = {448ED2E5-0B37-4D97-9E6B-8C10A507976A}
+		{040BB64B-012E-4E4F-BB02-E85EF46D3475} = {423E7BAC-0125-46F4-944D-E8F138B3C654}
+		{423E7BAC-0125-46F4-944D-E8F138B3C654} = {8630F7AA-2969-4DC9-8700-9B468C1DC21D}
+		{7FAFCBD2-BDD5-433C-B3D4-700B5C5A67AA} = {423E7BAC-0125-46F4-944D-E8F138B3C654}
+		{42B6776C-2CCA-4C0B-8555-7121AA9AEDA9} = {423E7BAC-0125-46F4-944D-E8F138B3C654}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {4B3D7591-CFEC-4762-9A07-ABE99938FB77}
@@ -2223,6 +2291,7 @@ Global
 		test\inc\inc.vcxitems*{08bc78e0-63c6-49a7-81b3-6afc3deac4de}*SharedItemsImports = 4
 		dev\PushNotifications\PushNotifications.vcxitems*{103c0c23-7ba8-4d44-a63c-83488e2e3a81}*SharedItemsImports = 9
 		dev\Notifications\BaseNotifications\BaseNotifications.vcxitems*{2bd7a1bb-d3d8-484f-9180-409d781dccf9}*SharedItemsImports = 9
+		dev\CompatibilityOptions\CompatibilityOptions.vcxitems*{1f7b9e9f-9987-490b-9e6e-093c7f63fec4}*SharedItemsImports = 9
 		dev\EnvironmentManager\API\Microsoft.Process.Environment.vcxitems*{2f3fad1b-d3df-4866-a3a3-c2c777d55638}*SharedItemsImports = 9
 		dev\OAuth\OAuth.vcxitems*{3e7fd510-8b66-40e7-a80b-780cb8972f83}*SharedItemsImports = 9
 		test\inc\inc.vcxitems*{412d023e-8635-4ad2-a0ea-e19e08d36915}*SharedItemsImports = 4
@@ -2244,6 +2313,7 @@ Global
 		dev\ApplicationData\ApplicationData.vcxitems*{b73ad907-6164-4294-88fb-f3c9c10da1f1}*SharedItemsImports = 4
 		dev\BackgroundTask\BackgroundTaskBuilder\BackgroundTaskBuilder.vcxitems*{b73ad907-6164-4294-88fb-f3c9c10da1f1}*SharedItemsImports = 4
 		dev\Common\Common.vcxitems*{b73ad907-6164-4294-88fb-f3c9c10da1f1}*SharedItemsImports = 4
+		dev\CompatibilityOptions\CompatibilityOptions.vcxitems*{b73ad907-6164-4294-88fb-f3c9c10da1f1}*SharedItemsImports = 4
 		dev\DynamicDependency\API\DynamicDependency.vcxitems*{b73ad907-6164-4294-88fb-f3c9c10da1f1}*SharedItemsImports = 4
 		dev\Licensing\Licensing.vcxitems*{b73ad907-6164-4294-88fb-f3c9c10da1f1}*SharedItemsImports = 4
 		dev\PackageManager\API\PackageManager.vcxitems*{b73ad907-6164-4294-88fb-f3c9c10da1f1}*SharedItemsImports = 4

build/AzurePipelinesTemplates/WindowsAppSDK-SetupBuildEnvironment-Steps.yml

@@ -195,6 +195,14 @@ steps:
     arguments: -Path $(Build.SourcesDirectory)\dev\common\TerminalVelocityFeatures-OAuth.xml -Channel $(channel) -Language C++ -Namespace Microsoft.Security.Authentication.OAuth -Output $(Build.SourcesDirectory)\dev\common\TerminalVelocityFeatures-OAuth.h
     workingDirectory: '$(Build.SourcesDirectory)'
 
+- task: powershell@2
+  displayName: 'Create CompatibilityOptions TerminalVelocity features'
+  inputs:
+    targetType: filePath
+    filePath: tools\TerminalVelocity\Generate-TerminalVelocityFeatures.ps1
+    arguments: -Path $(Build.SourcesDirectory)\dev\common\TerminalVelocityFeatures-CompatibilityOptions.xml -Channel $(channel) -Language C++ -Namespace Microsoft.Windows.ApplicationModel.WindowsAppRuntime -Output $(Build.SourcesDirectory)\dev\common\TerminalVelocityFeatures-CompatibilityOptions.h
+    workingDirectory: '$(Build.SourcesDirectory)'
+
 - task: powershell@2
   name: UpdateTraceloggingConfig
   inputs:

build/CopyFilesToStagingDir.ps1

@@ -212,6 +212,10 @@ PublishFile $FullBuildOutput\WindowsAppRuntime_DLL\StrippedWinMD\Microsoft.Windo
 PublishFile $FullBuildOutput\WindowsAppRuntime_DLL\StrippedWinMD\Microsoft.Windows.System.winmd $NugetDir\lib\uap10.0
 PublishFile $FullBuildOutput\WindowsAppRuntime_UniversalBGTaskDLL\Microsoft.Windows.ApplicationModel.Background.UniversalBGTask.winmd $NugetDir\lib\uap10.0
 #
+# Common Auto-Initializer Files
+PublishFile $FullBuildOutput\WindowsAppRuntime_DLL\WindowsAppRuntimeAutoInitializer.cpp $NugetDir\include
+PublishFile $FullBuildOutput\WindowsAppRuntime_DLL\WindowsAppRuntimeAutoInitializer.cs $NugetDir\include
+#
 # Bootstrap Auto-Initializer Files
 PublishFile $FullBuildOutput\WindowsAppRuntime_BootstrapDLL\MddBootstrapAutoInitializer.cpp $NugetDir\include
 PublishFile $FullBuildOutput\WindowsAppRuntime_BootstrapDLL\MddBootstrapAutoInitializer.cs $NugetDir\include

build/NuSpecs/AppxManifest.xml

@@ -114,6 +114,9 @@
 
         <!-- BadgeNotifications -->
         <ActivatableClass ActivatableClassId="Microsoft.Windows.BadgeNotifications.BadgeNotificationManager" ThreadingModel="both" />
+
+        <!-- CompatibilityOptions -->
+        <ActivatableClass ActivatableClassId="Microsoft.Windows.ApplicationModel.WindowsAppRuntime.CompatibilityOptions" ThreadingModel="both" />
       </InProcessServer>
     </Extension>
     <Extension Category="windows.activatableClass.proxyStub">

build/NuSpecs/Microsoft.WindowsAppSDK.AutoInitializer.CS.targets

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT License. See LICENSE in the project root for license information. -->
+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+  <PropertyGroup>
+      <DefineConstants Condition="'$(WindowsAppSdkBootstrapInitialize)'=='true'">$(DefineConstants);MICROSOFT_WINDOWSAPPSDK_AUTOINITIALIZE_BOOTSTRAP</DefineConstants>
+      <DefineConstants Condition="'$(WindowsAppSdkDeploymentManagerInitialize)'=='true'">$(DefineConstants);MICROSOFT_WINDOWSAPPSDK_AUTOINITIALIZE_DEPLOYMENTMANAGER</DefineConstants>
+      <DefineConstants Condition="'$(WindowsAppSdkUndockedRegFreeWinRTInitialize)'=='true'">$(DefineConstants);MICROSOFT_WINDOWSAPPSDK_AUTOINITIALIZE_UNDOCKEDREGFREEWINRT</DefineConstants>
+      <DefineConstants Condition="'$(WindowsAppSdkCompatibilityInitialize)'=='true'">$(DefineConstants);MICROSOFT_WINDOWSAPPSDK_AUTOINITIALIZE_COMPATIBILITY</DefineConstants>
+  </PropertyGroup>
+
+  <!-- "BeforeCompile" is used here to ensure this happens at the same time as possible codegen from WindowsAppSdkCompatibilitySetterTarget -->
+  <Target Name="WindowsAppRuntimeAutoInitializer" BeforeTargets="BeforeCompile">
+    <ItemGroup>
+        <Compile Include="$(MSBuildThisFileDirectory)..\include\WindowsAppRuntimeAutoInitializer.cs" />
+    </ItemGroup>
+  </Target>
+
+</Project>

build/NuSpecs/Microsoft.WindowsAppSDK.AutoInitializerCommon.targets

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT License. See LICENSE in the project root for license information. -->
+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+  <!-- Targets file common to both managed and native projects -->
+
+  <PropertyGroup Condition="'$(WindowsAppSdkAutoInitializeNeeded)' == '' and
+        ('$(WindowsAppSdkBootstrapInitialize)' == 'true' or
+        '$(WindowsAppSdkUndockedRegFreeWinRTInitialize)' == 'true' or
+        '$(WindowsAppSdkDeploymentManagerInitialize)' == 'true' or
+        '$(WindowsAppSdkCompatibilityInitialize)' == 'true')">
+    <!-- Any of the individual initialize steps will require the core auto initializer -->
+    <WindowsAppSdkAutoInitialize Condition="'$(WindowsAppSdkAutoInitialize)'==''">true</WindowsAppSdkAutoInitialize>
+  </PropertyGroup>
+
+</Project>

build/NuSpecs/Microsoft.WindowsAppSDK.CompatibilitySetter.CS.targets

@@ -0,0 +1,64 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the MIT License. See LICENSE in the project root for license information. -->
+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+  <PropertyGroup Condition="'$(WindowsAppSDKRuntimePatchMode)' != '' or '$(WindowsAppSDKRuntimePatchMode2)' != '' or '$(WindowsAppSDKDisabledChanges)' != ''">
+      <WindowsAppSdkCompatibilityInitialize>true</WindowsAppSdkCompatibilityInitialize>
+  </PropertyGroup>
+
+  <Target Name="WindowsAppSdkCompatibilitySetterTarget" BeforeTargets="CoreCompile"
+          Condition="'$(WindowsAppSDKRuntimePatchMode)' != '' or '$(WindowsAppSDKRuntimePatchMode2)' != '' or '$(WindowsAppSDKDisabledChanges)' != ''">
+    <PropertyGroup>
+      <WindowsAppSDKGeneratedFilesDir Condition="'$(WindowsAppSDKGeneratedFilesDir)' == '' and '$(GeneratedFilesDir)' != ''">$(GeneratedFilesDir)\WindowsAppSDK\</WindowsAppSDKGeneratedFilesDir>
+      <WindowsAppSDKGeneratedFilesDir Condition="'$(WindowsAppSDKGeneratedFilesDir)' == ''">$([MSBuild]::NormalizeDirectory('$(MSBuildProjectDirectory)', '$(IntermediateOutputPath)', 'Generated Files', 'WindowsAppSDK'))</WindowsAppSDKGeneratedFilesDir>
+
+      <WindowsAppSDKCompatibilitySetterFile>$(WindowsAppSDKGeneratedFilesDir)WindowsAppSDKCompatibilitySetter.cs</WindowsAppSDKCompatibilitySetterFile>
+      <WindowsAppSDKCompatibilityPatchMode1Lines Condition="'$(WindowsAppSDKRuntimePatchMode)' != ''">
+            compatibilityOptions.PatchMode1 = new WindowsAppRuntimeVersion($(WindowsAppSDKRuntimePatchMode.Replace(".", ",")))%3B
+      </WindowsAppSDKCompatibilityPatchMode1Lines>
+      <WindowsAppSDKCompatibilityPatchMode2Lines Condition="'$(WindowsAppSDKRuntimePatchMode2)' != ''">
+            compatibilityOptions.PatchMode2 = new WindowsAppRuntimeVersion($(WindowsAppSDKRuntimePatchMode2.Replace(".", ",")))%3B
+      </WindowsAppSDKCompatibilityPatchMode2Lines>
+
+      <WindowsAppSDKCompatibilityDisabledChangesNoSpaces Condition="'$(WindowsAppSDKDisabledChanges)' != ''">$([System.Text.RegularExpressions.Regex]::Replace($(WindowsAppSDKDisabledChanges), "\s+", ""))</WindowsAppSDKCompatibilityDisabledChangesNoSpaces>
+      <WindowsAppSDKCompatibilityDisabledChangesLines Condition="'$(WindowsAppSDKCompatibilityDisabledChangesNoSpaces)' != ''">
+            var disabledChangesArray = new CompatibilityChange[] { CompatibilityChange.$([System.Text.RegularExpressions.Regex]::Replace($(WindowsAppSDKCompatibilityDisabledChangesNoSpaces), ",([A-Za-z])", ", CompatibilityChange.$1")) }%3B
+            foreach (var changeId in disabledChangesArray)
+            {
+                compatibilityOptions.DisabledChanges.Add(changeId)%3B
+            }
+      </WindowsAppSDKCompatibilityDisabledChangesLines>
+
+      <WindowsAppSDKCompatibilitySetterFileLines>
+using Microsoft.Windows.ApplicationModel.WindowsAppRuntime%3B
+
+// This file is generated by the build based on project properties.
+namespace Microsoft.Windows.ApplicationModel.WindowsAppRuntime.Compatibility
+{
+    class AutoInitialize
+    {
+        // Called by WindowsAppRuntimeAutoInitializer.cs
+        internal static void ConfigureCompatibility()
+        {
+            var compatibilityOptions = new CompatibilityOptions()%3B
+$(WindowsAppSDKCompatibilityPatchMode1Lines)
+$(WindowsAppSDKCompatibilityPatchMode2Lines)
+$(WindowsAppSDKCompatibilityDisabledChangesLines)
+            compatibilityOptions.Apply()%3B
+        }
+    }
+}
+      </WindowsAppSDKCompatibilitySetterFileLines>
+    </PropertyGroup>
+
+    <WriteLinesToFile
+        File="$(WindowsAppSDKCompatibilitySetterFile)" Lines="$(WindowsAppSDKCompatibilitySetterFileLines)"
+        Overwrite="true"
+        WriteOnlyWhenDifferent="true" />
+
+    <ItemGroup>
+        <Compile Include="$(WindowsAppSDKCompatibilitySetterFile)" />
+    </ItemGroup>
+  </Target>
+
+</Project>

build/NuSpecs/Microsoft.WindowsAppSDK.Foundation.targets

@@ -13,6 +13,11 @@
   <Import Project="$(MSBuildThisFileDirectory)Microsoft.WindowsAppSDK.DeploymentManagerCommon.targets" />
   <Import Project="$(MSBuildThisFileDirectory)Microsoft.WindowsAppSDK.DeploymentManager.CS.targets" Condition="'$(WindowsAppSdkDeploymentManagerInitialize)' == 'true'"/>
 
+  <Import Project="$(MSBuildThisFileDirectory)Microsoft.WindowsAppSDK.CompatibilitySetter.CS.targets" />
+
+  <Import Project="$(MSBuildThisFileDirectory)Microsoft.WindowsAppSDK.AutoInitializerCommon.targets" />
+  <Import Project="$(MSBuildThisFileDirectory)Microsoft.WindowsAppSDK.AutoInitializer.CS.targets" Condition="'$(WindowsAppSdkAutoInitialize)' == 'true'"/>
+
   <ItemGroup>
     <Compile Condition="'$(WindowsAppSdkIncludeVersionInfo)'=='true'" Include="$(MSBuildThisFileDirectory)..\include\WindowsAppSDK-VersionInfo.cs" />
   </ItemGroup>