RealPlayer
11 requires XP, 10 will work just fine on ME (my condolences on your affliction by the way).
Have a look at this page for an ME compatible version:
http://forms.real.com/real/player/blackjack.html
There's also RealAlternative which will give you the capability of playing RealMedia files without having to install RealPlayer, which frankly is horrible.
http://www.free-codecs.com/download/...lternative.htm