This plugin works with Windows VISTA and XP and Firefox browsers

Download this plugin:

http://port25.technet.com/pages/windows-media-player-firefox-plugin-download.aspx

This fix works with Windows XP and Firefox, Opera and Mozilla browsers

To get firefox or mozilla or opera to play windows media on embed statements, do this:
 

Search your hard drive for npds play.dll usually found under \Program Files\Windows Media player\npds play.dll
(but not always, depends on your OS and config)

Then copy it to your firefox plugins folder \Program Files\firefox\plugins
(but not always located there, depending on where you installed it)

Same thing for mozilla \mozilla\plugins\

similar for opera \opera\program\plugins\

Remember to close and restart the browser to make it load.
Then it should work perfectly on most pages that don't only specify active-X.

Mac users

We recommend that you download a utility called Flip4Mac. You can get a free download from Microsoft that allows
you to play Windows Media files in your Quicktime player.
Download free here... http://www.microsoft.com/windows/windowsmedia/player/wmcomponents.mspx