Lifextender is a dead-simple commercial-removal application designed exclusively for Windows Vista Media Center users. There is ZERO configuration required, however, there are plenty of options if that's your thing.
Lifextender is free as in beer, so it costs you nothing. However, if you are in a generous mood, feel free to donate to keep the development alive.
Interesting. AGAIN another reason to resurrect my media center... sigh...
NOTE: This software is still in an Alpha state. So use at your own risk, etc, etc. (But given the quality of Mr. DeRosa's past work, I'd bet on this being pretty darn solid...)