Just in case you don't have Windows Media Player 9 to watch the Halo 2 Trailer! you can now download the Official Windows Media Player 9 Beta for Windows® 98 SE, Windows Millennium, Windows 2000, Windows XP (recommended).

Update: I have separated the Windows® 98 SE, Millennium, 2000 , Xp ! so now you can Individually download Windows Media Player 9 Beta

Download Official Windows Media Player 9 Beta Windows® 98 SE, Millennium, 2000

Download Official Windows Media Player 9 Beta Windows®XP

System Requirements for Windows® 98 SE, Windows Millennium, Windows 2000, Windows XP

Official Windows Media Player 9 Beta Site