http://bugs.winehq.org/show_bug.cgi?id=35648
--- Comment #2 from Tristan Schmelcher tristan.schmelcher@gmail.com --- You are right, the crash doesn't occur for me when MS .NET 4.0 has been installed in that way (didn't know about that trick, thanks). Although the app has fatal issues later that I will file separately.
So I guess it is a Wine-Mono bug.