http://bugs.winehq.org/show_bug.cgi?id=25206
--- Comment #64 from jonathan-vola@hotmail.com 2011-01-23 04:43:00 CST --- To fix the ingame store: Open dlls/ntll/signal_i386.c, change the RtlCaptureStackBackTrace funtion so all it does is: return 0;
Install vcrun2008 into the prefix: Voila, in game store works fine