http://bugs.winehq.org/show_bug.cgi?id=34207
--- Comment #5 from Ken Sharp kennybobs@o2.co.uk 2013-08-05 14:27:40 CDT --- Winetricks has multiple problems handing the dotnet packages so I only use it for dotnet20 and dotnet30 (flaky). See https://code.google.com/p/winetricks/issues/detail?id=337