converting quicktime to WMP

I am trying to get a quicktime movie converted to a WMP file but all I can get is the sound does anyone know how to get round this

Can you be more precise about what program you are using to make the conversion? (Windows Media Encoder, Windows Movie Maker, or some other)
Also can you check what codec the QuickTime file uses? Is it a cross-platform codec (like Indeo or Cinepak), or a QuickTime-only codec (like Sorenson or 'Video')? (To check for the codec, open the file in QuickTime Player, go to Movie, choose Movie Properties; on the left drop-down menu pick video track, on the right drop-down menu pick format. The codec is listed on the line 'data format')
Generally speaking if your QuickTime file uses a cross-platform codec, Windows Media Encoder and Movie Maker should be able to make the conversion without any problems. If on the other hand you have a QuickTime-only codec, then the conversion would have to be in two steps. Step 1 you’d use QuickTime Pro ($30 from Apple) or RAD Video Tools (free) to convert the QuickTime file to AVI (preferrably using no compression or a lossless codec). Step 2 you’d use Windows Media Encoder (better than Movie Maker) to convert the AVI to Windows Media.
I should note that from following the threads on this board, it appears some audio formats can’t be handled in RAD Video Tools (people have sometimes complained of not hearing audio even though they checked the convert audio box). If that’s the case then only QuickTime Pro can do the conversion of the audio to a format (in an AVI) that can be read by non-QuickTime players.