http://bugs.winehq.org/show_bug.cgi?id=15555
--- Comment #3 from Vincent Povirk madewokherd@gmail.com 2010-08-30 17:01:58 CDT --- I think it's not in Wine because no one ever sent it, not because there's necessarily a problem with it.
It seems the author asked for review long ago and got no response: http://www.winehq.org/pipermail/wine-patches/2004-January/009481.html
Just from quickly skimming it, the code would need to be ported to Wine's build systems, and C++ comments would have to be eliminated.
The main program is nearly 4000 lines of code. It would have to be split into smaller patches and sent. It's generally more difficult for anyone but the original author to get patches accepted. Still, I think this would be reasonable if someone wants to put in the time.