Why won't a .wmv file open on my Windows mobile phone?

[john_p_bowen]

I downloaded a couple of videos on my Windows mobile 6.5 phone, when I opened the file Windows Media Player opened but it would only play the audio and not show the video, I think I need to update the codecs but I don't know how to.
Thanks for your help,
-John

P.S. I have tried to download and install TCPMP, but it will not open it says "Unexpected program failure" and will not run.