I dont know .. May be TCPMP is incompatible with windows ce 6.0 version.

Yes it is, I've used it myself.

I'll have to look into it...

Is there any other media player compatible with windows ce 6.0 version ?

There are lots of media players, TCPMP was one of the more compatible players, Nitrogen is OK, but you need to find the WinCE version with the correct skin for your device's resolution, This was an unofficial build.

WinCE 6 and media players were never a happy combination...

Nitrogen is mp3 player ? I need it more to play avi files .. ;)

Where i can find avi players compatible with win ce ?

There are lots of media players available, but TCPMP was the most compatible and supported the most codecs.

Try and find a "free" version of coreplayer which is the premium version of TCPMP.
You may find it as a cab file, you can unpack it with MSCEInf, then use dependancy walker to check for missing dll's etc

Thanks for your help Fatboyfun .I will try to fix it .