firefox video plugin for windows media player video?

[Marcelo Magno T Sales]

> First of all, you need the WMV codecs and other nonfree codecs they
> might be using:
> http://www.mplayerhq.hu/design7/dload.html
> Download "essential codecs package" from one of the mirrors, and make
> the directory /usr/local/lib/codecs, and extract the package there. Make
> a symlink:

(...)

I think he was asking if is there a plugin which is detected by websites as if 
it was WMP. I have all these codecs installed here and can play any Windows 
Media format, but some sites still "think" I don't have Windows Media Player 
installed and refuse to allow me to play Windows Media.
For example, go to:
http://tv.terra.com.br
Click any video to add it to the playlist. Try to play it clicking the play 
button in the playlist. Click the link "Configuração", which appears at the 
lower left corner of the player Window. The site tries to detect if you have 
WMP and/or Real Player installed. Here, it detects RP, but not WMP. Is there 
a plugin which makes the site "think" I have WMP installed?
Taking a rid in this question, I can't play videos at this site with Real 
Player neither, but it's detected. Any clue why?

Thanks,

Marcelo