diff -r 809581724cc7 -r e79a60b3a7cb make/vs/testapp/testapp.vcxproj
--- a/make/vs/testapp/testapp.vcxproj	Sat Apr 15 21:06:45 2023 +0200
+++ b/make/vs/testapp/testapp.vcxproj	Sun Apr 16 10:20:21 2023 +0200
@@ -27,6 +27,9 @@
     <ProjectGuid>{3541f08b-e6cc-4c23-a0d3-51983aab33c6}</ProjectGuid>
     <RootNamespace>testapp</RootNamespace>
     <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+    <WindowsAppSDKSelfContained>true</WindowsAppSDKSelfContained>
+    <WindowsPackageType>None</WindowsPackageType>
+    <AppxPackage>false</AppxPackage>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
@@ -111,9 +114,10 @@
       <SDLCheck>true</SDLCheck>
       <PreprocessorDefinitions>_DEBUG;_CONSOLE;UI_WINUI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <ConformanceMode>true</ConformanceMode>
+      <AdditionalIncludeDirectories>C:\Users\Olaf\Projekte\toolkit\ui;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
     <Link>
-      <SubSystem>Console</SubSystem>
+      <SubSystem>Windows</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
     </Link>
   </ItemDefinitionGroup>
@@ -139,6 +143,11 @@
   <ItemGroup>
     <None Include="packages.config" />
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\..\ui\winui\winui.vcxproj">
+      <Project>{04d5ee2c-6076-4c7c-8b70-b0f6d602ff55}</Project>
+    </ProjectReference>
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
     <Import Project="..\packages\Microsoft.Windows.CppWinRT.2.0.230225.1\build\native\Microsoft.Windows.CppWinRT.targets" Condition="Exists('..\packages\Microsoft.Windows.CppWinRT.2.0.230225.1\build\native\Microsoft.Windows.CppWinRT.targets')" />