When you attempt to install Windows Media Player 10 on Windows XP SP2, you receive a message similar to:

This version of Windows Media Technologies is incompatible with this version of Windows. For more information, view the information at the Microsoft web site.

To workaround this behavior:

1. Open a CMD.EXE window.

2. Type the following commands, pressing Enter after each line:

CD /D %SystemDrive%for /f "Tokens=*" %x in ('dir /b /a /s Wmploc.dll') do copy "%x" %SystemRoot%\System32\*.*
3. Install Windows Media Player 10.