System Requirements:

• Windows Operating System
  233MHz Intel Pentium II processor or equivalent
  64MB of RAM
  100MB available disk space
  Windows 98SE, Windows ME, Windows NT 4.0
  with Service Pack 6 or later(playback only), Windows 2000 with Service Pack 2 or later, or Windows XP
  IE 5.01 or latest version
  Netscape 4.7 or latest version
  On Windows XP or later 128MB of RAM, 300MB available disk space, IE 6 Service pack 1, Netscape 7 or Higher, Java recommended, and 56K modem
• Mac Operating System
  

Mac OS X 10.1.5 or later
450MHz PowerPC G3 processor or higher
Microsoft Internet Explorer 5.1 for Mac
America Online for Mac OS X
Netscape 7.1
Msn for Mac OS X version 2.0 or Apple Safari 1.0

Note: New player icons may not appear for Mac OS X if
Classic version of Media Player is still installed on computer. Also Media Player for Mac OS X does not support UNIX File System (UFS).   

Downloads:

• Windows Media Player

Additional Resources:

• Windows Media Player FAQ