http://bugs.winehq.org/show_bug.cgi?id=25044
--- Comment #3 from Daniel Hahler wine-bugzilla@thequod.de 2010-11-05 17:57:46 CDT --- When changing to the application directory first ("cd ~/.wine/drive_c/Programme/HeidiSQL"), using the symlink to start the program does not cause this crash.
So, it looks like some resource in the program's folder gets accessed somehow and using the full path to start the program appears to handle this case, while using a symlink does not?!