PI: WinUI + WASDK check misses WinUI 2/C++ programs about devhome HOT 1 CLOSED

Taking a glance at the code, it seems like Project Ironsides is checking two DLLs for the checks (both being wrong):

• Microsoft.Windows.SDK.NET.dll for Windows App SDK check.
• Microsoft.WinUI.dll for WinUI check.

Microsoft.WinUI.dll is the C#/WinRT projection DLL for WinUI 3, and as such only C# WinUI 3 apps use it. A more accurate DLL to check for is Microsoft.UI.Xaml.dll, which is also used by WinUI 2.

Microsoft.Windows.SDK.NET.dll is the C#/WinRT projection for the Windows SDK. This means that only .NET apps get picked up, and also .NET apps that use the Windows TFM for Windows SDK access get the checkmark even if they don't use the Windows App SDK.

There's no easy way to do an accurate check on the latter though, since the Windows App SDK has many DLLs and each major update can add a few more to the list. In addition, applications can opt for either framework-dependent or self-contained deployment, so checking package dependencies is also unreliable.

from devhome.