Comment by int_19h

You couldn't redistribute NGen'd binaries tho, it was basically a local AOT'd cache.

As far as Native AOT, last I checked it requires trimming which breaks WinForms (and WPF) according to the official docs.

I don't think this matters much, though. There's simply no practical reason to AOT-compile a WinForms app. Not when the framework is guaranteed to be there, and JIT compiler is plenty fast.