http://bugs.winehq.org/show_bug.cgi?id=14055
--- Comment #48 from Artem S. Tashkinov t.artem@mailcity.com 2011-03-28 12:39:42 CDT --- Created an attachment (id=33842) --> (http://bugs.winehq.org/attachment.cgi?id=33842) h3sndfix.zip, an mp3dec.asi fix for Windows XP, Vista, 7 and Wine
Actually people have already contacted the aforementioned developers with little success, the problem is not in the library but in a way Heroes 3 works with it.
Read more information here: http://heroescommunity.com/viewthread.php3?TID=18269
Here's a link (http://www.celestialheavens.com/forums/viewtopic.php?t=8031) to the Heroes III sound fix, as promised.