http://bugs.winehq.org/show_bug.cgi?id=34584
--- Comment #5 from Vincent Povirk madewokherd@gmail.com --- fixme:mscoree:CLRMetaHost_GetRuntime Unrecognized version L"v4.0"
This is the issue. We're failing to detect the correct runtime for the exe, and loading it with the 2.0 runtime.
But there are more problems after that one.