http://bugs.winehq.org/show_bug.cgi?id=32951
--- Comment #11 from Rico kgbricola@web.de 2013-02-14 15:45:55 CST --- Yes, we don't terminate all threads before unloading the dlls. See http://msdn.microsoft.com/en-us/library/windows/desktop/ms682658%28v=vs.85%2... for reference.
Is a kernel/ntdll bug.