Leave Windows Media Player 9 alone. Microsoft stopped supporting it for a reason. At the same time M$ stopped supporting WMP 9, it endorsed Flip4Mac. Flip4Mac has an issue, but it is not the problem you are having. Based on your vague description, it is likely that your problem WMV files are WMV 10 or WMV 11. Nothing on the Mac--and that includes WMP 9 and VLC--plays WMV 10, WMV 11, or any version of DRMed WMV. That's the bad news. The good news is that WMV 11 seems to have taken a major step backwards since Microsoft endorsed Flip4Mac.I have flip4mac but when it opens a WMV nothing happens. It will show the file name but it won't play.
So, I decided to go ahead and download Windows media player 9 for Mac OS X. ...