http://bugs.winehq.org/show_bug.cgi?id=15202
--- Comment #10 from Dmitry Timoshkov dmitry@codeweavers.com 2008-09-10 05:55:52 --- (In reply to comment #9)
Arkadiusz, I edited them with mcedit and after that everything was peachy :-) Refer to FAQ however, that such editing is not guaranteed to work and you (and I) do this on your own risk.
All you need is make sure that wineserver is not running in this $WINEPREFIX, there is nothing dangerous or risky once you take care of that.