http://bugs.winehq.org/show_bug.cgi?id=18645
--- Comment #3 from Henri Verbeet hverbeet@gmail.com 2009-05-27 09:28:42 --- (In reply to comment #2)
I don't know how to disable this wonderfull feature...
You can add a DWORD value HKCU\Software\Wine\WineDbg\ShowCrashDialog with value 0 in the registry. (You can also find that at http://wiki.winehq.org/UsefulRegistryKeys).