http://bugs.winehq.org/show_bug.cgi?id=10073
--- Comment #5 from Dmitry Timoshkov dmitry@codeweavers.com 2008-01-06 01:57:45 --- (In reply to comment #4)
It does seem to crash intermittently and the installer seems to leave the first launch of msnmsgs.exe in a defunct/zombie state.
defunct/zombie state usually indicates a bug in the Linux kernel.