[Bug 28597] winecfg page fault during sound test

http://bugs.winehq.org/show_bug.cgi?id=28597

--- Comment #5 from Jörg Höhle  2011-10-27 02:53:51 CDT ---
I don't understand why the future IMMNotificationClient would help. Your
suspicion in comment #1 seems very reasonable, the user expects to have "test
sound" take effect immediately (this was a long-standing bug), so the goal is
to have winmm shut down properly and be able to reload it.

What does prevent winmm from shutting down its devices thread properly?
your patch sounds like a work-around the bug that winmm may not unload
properly, which sounds like it could potentially affect any app that
dynamically loads it (probably a minority).