http://bugs.winehq.org/show_bug.cgi?id=22203
--- Comment #11 from Johannes Bauer jb.imm@gmx.de 2010-03-31 06:26:36 --- Excellent - the crash during the installation is now gone. This seems to be a different issue than the startup crash.
The startup crash does not show when I specify WINEDEBUG=synchronous, it still does (even with internal comctl32) when no debugging is turned on, however.