http://bugs.winehq.org/show_bug.cgi?id=24974
--- Comment #7 from Dan Kegel dank@kegel.com 2011-02-04 10:47:27 CST --- I think NULL was added in http://source.winehq.org/git/wine.git/?a=commit;h=c964134a59d50ce46d25cd98ca... to fix bug 25544. Please recheck.