Can I play .AVI files on Windows Media Player 9 for Mobile Devices?

I have a PDA with Pocket PC 4.20.1081 and Windows Media Player 9 and I want to know, can I get it to play .AVI files? I can't figure out how to make WMP open them, it acts like all it will play are WMV and WMA files. If I can't make it work is there something like Real Player for Pocket PC?