You're infested with "Transponder" spyware!
Your computer is infected by Blackstone Data Corporation's Transponder spyware product, also known as VX2, RespondMiter, and Sputnik. You probably got it while installing dodgy software such as Audiogalaxy Satellite. It pops up annoying ad windows such as this one, hawking all sorts of crap you don't care about. It also collects personal information from your computer.

Click here for more info on this spyware and easy-to-follow removal instructions.

This message is brought to you by Jane of CounterExploitation, who reminds all sleazy spyware vendors to change the default passwords on the administration software they install on their servers.