https://bugs.winehq.org/show_bug.cgi?id=52652
Esme Povirk madewokherd@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |madewokherd@gmail.com
--- Comment #20 from Esme Povirk madewokherd@gmail.com --- We had a similar bug affecting CrossOver, and I found NtUserUnregisterClass isn't setting client_menu_name, so UnregisterClassW just frees something from uninitialized stack memory. That might be the cause here too.