[martin_fierro]

Google search -- looks like you've got a Trojan.

You may have to step back to an earlier System Restore point in XP to get rid of it.

[martin_fierro]

Symantec makes a couple of references to Trojans similar to what you have.

[Bloody Sam Roberts]

The best way to get rid of it is to go to the internet and download a copy of Windows Media Player and re-install it. This should overwrite the infection.

Go to www.computing.net. It is a computer help forum that you can search for answers to such questions. I have found it invaluable everytime I go there.