http://bugs.winehq.org/show_bug.cgi?id=22521
--- Comment #23 from Dan Kegel dank@kegel.com 2011-01-01 14:11:11 CST --- It may seem to install ok, but if you look in c:\windows\microsoft.net, you'll see it hasn't installed much of anything. winetricks dotnet20 installs 92MB of stuff. winetricks -q dotnet20sp2 installs very little, so I suspect it's broken.