http://bugs.winehq.org/show_bug.cgi?id=9849
--- Comment #3 from Dan Kegel dank@kegel.com 2008-11-23 18:26:44 --- It's been a while, not sure how I tested.
But that errorlevel check syntax you used might be wrong, see http://www.robvanderwoude.com/errorlevel.html I think you need to leave out the ==.