https://bugs.winehq.org/show_bug.cgi?id=35761
--- Comment #3 from Austin English austinenglish@gmail.com --- (In reply to JJ from comment #2)
(In reply to Austin English from comment #1)
Could you try 'winetricks dotnet20'? (You may need to do that before installing the application).
Apparently dotnet20 isn't supported on 64 bit systems, so I can't install that at all.
Use a 32-bit WINEPREFIX.