diff --git a/samples/FlashCap.WindowsForms/FlashCap.WindowsForms.csproj b/samples/FlashCap.WindowsForms/FlashCap.WindowsForms.csproj
index bbcf317..012035a 100644
--- a/samples/FlashCap.WindowsForms/FlashCap.WindowsForms.csproj
+++ b/samples/FlashCap.WindowsForms/FlashCap.WindowsForms.csproj
@@ -6,6 +6,7 @@
     <!--<TargetFrameworks>net35;net48;netcoreapp3.1;net5.0-windows;net6.0-windows</TargetFrameworks>-->
     <Nullable>disable</Nullable>  <!-- Because this source code commonly both latest .NET and mono. -->
     <UseWindowsForms>true</UseWindowsForms>
+    <EnableWindowsTargeting>true</EnableWindowsTargeting>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/samples/FlashCap.Wpf/FlashCap.Wpf.csproj b/samples/FlashCap.Wpf/FlashCap.Wpf.csproj
index 893dd19..8daf369 100644
--- a/samples/FlashCap.Wpf/FlashCap.Wpf.csproj
+++ b/samples/FlashCap.Wpf/FlashCap.Wpf.csproj
@@ -8,6 +8,7 @@
     <UseWPF>true</UseWPF>
     <DebugType>portable</DebugType>
     <DebugSymbols>true</DebugSymbols>
+    <EnableWindowsTargeting>true</EnableWindowsTargeting>
   </PropertyGroup>
 
   <ItemGroup>