[Bug 36387] Multiple Microsoft installers crash or hang with heap corruption (XmlLite, XPSEP, IE7)

https://bugs.winehq.org/show_bug.cgi?id=36387

--- Comment #7 from Anastasius Focht  ---
Hello Austin,

thanks for testing.

--- quote ---
If I ignore heap errors, then IE7 installs 500 times in a row, both with and
without warn+heap.
...
Without the patch, they still fail for me
--- quote ---

So it's definitely an improvement.
Even if the structure is internal and opaque to clients it doesn't harm if
Nikolay sends a patch in, maybe accompanied with a small test case that calls
SetupInitDefaultQueueCallbackEx() and checks the known member offsets for
expected data values (magic, owner, progress, msg)

Regards