According to bug 2659 http://bugs.winehq.org/show_bug.cgi?id=2659 This patch http://www.winehq.org/hypermail/wine-cvs/2005/01/0232.html causes a regression in Shareaza.
http://www.shareaza.com/?id=download
I have tested this myself and it is definitely this patch. Backing out this change with current cvs allows Sharaza to work.
The the source code for this program is available at http://sourceforge.net/project/showfiles.php?group_id=110672&package_id=...
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Tony lambregts