default media player

In the same way as you can select a default browser for previewing, can you
also set a default media player for playing .wmv files on a website? I do not
want to use Windows Media Player, but Corel WinDVD9 - the files have been set
to open with WinDVD but when I test the site in Firefox browser windows media
player tries to play the video (it also says that it can't play the file!!!). I
do not have the option to list WinDVD as default player in Program Access and
defaults panel of XP.

I need to have this working this weekend so any help would be greatly
appreciated

Thanks