http://bugs.winehq.org/show_bug.cgi?id=14684
--- Comment #2 from Juan Lang juan_lang@yahoo.com 2008-07-29 18:21:40 --- There was a stub for that function sent here: http://www.winehq.org/pipermail/wine-patches/2008-June/055871.html
It wasn't committed, perhaps due to the proximity to the 1.0 release.