dotnet.exe does not contain an application manifest, nor does the stripped down version when building a standalone app. The result is that applications cannot specify supportedOS to tell Windows they want to run without any OS version compat shims.

On desktop the way this works is that an application can add a manifest file to the app project (Add new item > Application manifest file) and that gets embedded in the exe by the compiler. Since .NETCore apps don't actually build the EXE we'd have to do something different.

I propose we change the host to include all the latest supportedOS entries at the time we ship. This is consistent with what we do for exe's in desktop. We could then allow the application to specify a manifest then the SDK could replace the one in the host when building a standalone app.