http://bugs.winehq.org/show_bug.cgi?id=10601
--- Comment #7 from Dotan Cohen winehq-bugs@dotancohen.com 2008-03-14 05:10:38 --- @Anastasius: This bug should stay open because .NET does not install by the standard installation method. There may be hacks, workarounds, and fixes, but that does not mean that the bug is fixed. And I personally did file a bug report with lots of info, console output, and screenshots of the *exact* problem and error messages. It was marked a dupe of this one, even though it is slightly different (different errors).
When .NET can be installed by running $ wine dotnet2.0.exe and clicking your way through it, then the bug will be fixed.