Have dell computer with windows XP  media centre  I cannot use  gives me message:some of the files needed to play Radio or Video are missing or corrupt.
Media Centre component REGRISTRATION may have failed.

any help please Maureen[face=Arial][/face] ::)

   I have never come across that problem but I would think that you could go to Microsoft's website, download Media Center, and reinstall it (unless it does not allow you to reinstall).