http://bugs.winehq.org/show_bug.cgi?id=16876
--- Comment #5 from Nikolay Sivov bunglehead@gmail.com 2009-05-24 14:52:52 --- (In reply to comment #4)
It appears to help, but the installer then crashes in rpcrt4.
A question was actually about a way to test this. Maybe I've just force a return value.