I'm not at all sure why you concluded these files are "residual". The
information at
http://support.microsoft.com/default.aspx?scid=kb;en-us;269605 suggests
that all these files are part Build 7.00.00.1954 of Windows Media Play
7. Accordingly, I can't think of any valid reason why you would want to
be deleting them other than to break Windows Media Player.
That being said, it surprising that they come back. I guess the Media
Player is self-healing for when people try to delete components.
I was assuming that you were trying to delete your own files. I should
have picked up on the clue where you mentioned the media player folder.
Hope this is useful to you. Let us know.
rms