http://www.microsoft.com/WindowsXP/expertzone/columns/crawford/02december09.aspIt's not difficult to remove Windows Media Player 9 Series as long as you plan ahead. Before installing Media Player 9 Series, use System Restore and create a restore point. Here's how you do it:
1. Click Start, and then click Help and Support.
2. Under Pick a task, click Undo changes to your computer with System Restore.
3. Click Create a restore point.
4. In the Restore point description box, provide a name for the restore point, as shown in Figure 1 below. Windows XP will automatically add the date and time to the name.
5. Click Create.
Figure 1
Install Windows Media Player 9 Series and should you become disillusioned with it (and I'm betting you won't) you can return your computer to that restore point. Just return to the System Restore entry in Help and Support. Click Restore my computer to an earlier time, and then click the restore point you created, as shown in Figure 2.
Figure 2
Windows Media Player 9 Series is removed and the previous version of the Player is restored. Any CD tracks copied to your computer will remain, and the previous version of Windows Media Player will be able to play this audio content.