Divx Player : Unspported Audio?

when i try to open “roswell-the monster” on my computer divx player i get a message that “you may need an additional audio decoder to play the soundtrack of this file”...“this file contains a track in the windows media audio (wma)(code"353” format. you may need to install a direct show decoder ofr this file audio format in order to hear the soundtrack of this file. ..i can watch it but i have no sound can someone help