https://bugs.winehq.org/show_bug.cgi?id=48360
--- Comment #5 from bugs.winehq@webfreak.org --- (In reply to Jacek Caban from comment #4)
I can't reproduce the bug. Maybe it's .net version related, what .net version do you use and how did you install it?
I installed .NET 1.0, 2.0 SP1, 2.0.50727, 3.0, 3.0 SP1 and 4.0.30319 (according to registry), all through winetricks