[Bug 55153] comdlg32:filedlg sometimes crashes on Windows 7

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=55153

--- Comment #4 from François Gouget  ---
We don't always get those.

There are some cases where it's because the crash happens in a thread that
never called ok() or trace() and thus did not set up the TLS data.

But the format of the "unhandled exception" message varies depending on the
platform (for reasons unknown onmy end) so I suspect that there are some cases
where our exception filter is not being called at all; in which case one would
not get the "last seen test" message either.