[Feature Request] [L] Support for Windows WinUI 3 desktop apps

The Microsoft.Identity.Client library doesn’t support Windows WinUI 3 desktop Project Reunion apps today. I think the library is seeing the net5.0-windows TFM and thinking it’s a WPF or WinForms app, and therefore doesn’t work with a WinUI 3 app (which is neither of those).

Describe the solution you’d like Microsoft.Identity.Client library works with WinUI 3 desktop apps.

Additional context To reproduce…

1. First set up dev environment (install Reunion VSIX): https://docs.microsoft.com/en-us/windows/apps/project-reunion/set-up-your-development-environment
2. Then create a WinUI desktop app: https://docs.microsoft.com/en-us/windows/apps/winui/winui3/get-started-winui3-for-desktop
3. Then add the Microsoft.Identity.Client NuGet package to the app and attempt to build and run the app

[andrewleader]

@bgavrilMS you can use 1.0.0-preview2 of the WinAppSDK, that has the fix and is publicly available now.

[baskren]

Here is the bug : https://github.com/AzureAD/microsoft-authentication-library-for-dotnet/issues/3941 Why it’s closed is a mystery to me.