Have you tried the XP codec pack for WMP? There's a link here
http://www.gnutellaforums.com/showth...ght=wmp+codecs

As for VLC, I don't know! It's supposed to have built in codecs. Have you tried running the VLC installer again? Or you could check out their forum. Use their search, you might find an answer that way
http://forum.videolan.org/viewtopic.php?t=11125



**Replies to posts aren't working at the moment.
Reply by PM will work. You'll see an error page but the message still goes through.
Else, start a new thread titled "your original thread - merge".
A moderator will merge threads when they get the chance.