This package is for network administrators who want to deliver support for the latest Windows Media Audio and Video codecs for enterprise computers running Windows Media Player 7.1, Windows Media Player for Windows XP, Windows Media Player 9 Series, and Windows Media Player 10.
Note: If you do not have Windows Media Player 9 Series or later installed and cannot play content by using the Windows Media Video 9 or Windows Media Audio 9 Voice codecs from a Player embedded in a Web page, consider downloading the codec installation package for Windows Media Player 6.4 as well.