http://bugs.winehq.org/show_bug.cgi?id=34207
--- Comment #4 from Hans Leidekker hans@meelstraat.net 2013-08-05 14:22:52 CDT --- (In reply to comment #3)
Yup, no difference with normal, /q or /qb install.
I get a different failure if I revert the patch. The workaround in winetricks for bug 16956 avoids both failures. It seems to me that winetricks used the wrong bug for this. Bug 16956 does mention a race condition but it started out as a different bug which has been fixed.