If you want to try out the free password management solution KeePass under Linux and experience crashes every time you press the Windows key, there is an easy fix:
/usr/bin/keepass2 and change the line
exec /usr/bin/cli /usr/lib/keepass2/KeePass.exe "$@"
exec /usr/bin/cli --verify-all /usr/lib/keepass2/KeePass.exe "$@"
The developers of Keepass have acknowledged the problem, but sadly they can't do anything about it, since it is a bug in Mono and not in Keepass: https://sourceforge.net/p/keepass/bugs/1545