Please, enable installation of dotnet35 and dotnet20 on 64bitsprefix.

[charmandercha]

The only way I can install them to play games that need them, is by downloading from the official microsoft website, which is a bit of a pain.

And yes, I install on 64bit, it has good support now.

[Matoking]

This seems to be a winetricks bug. Have you tried updating your winetricks installation with the fix @austin987 has proposed in this issue report? There's also a discussion and some potential solutions for the .NET 2.0 issues here.

[simons-public]

There was a (bug in in the version of wine)[https://github.com/ValveSoftware/wine/pull/30] used by Proton in 3.16 until 3.16-4 that prevented MSI installers like dotnet from working properly. Make sure you're using Proton 3.7 or 3.16-4.

[Sirmentio]

This seems to be a wine bug itself, I don't think Protontricks does anything to the functionality of winetricks itself, it just works with what it gets.