Prema screenshotu pretpostavljam da si krivo unio link.
Nije
http://www.fivestarproductions.com/todayshealth/Video/win_56.asp?Videoname=mms://mediaserv01.vstar.com/vstar/health/370/3247A_56k.wmv
nego
mms://mediaserv01.vstar.com/vstar/health/370/3247A_56k.wmv