This is one of the easiest methods to install windows media player 11
Step 1:
download WMP11
Step 2:
Extract the WMP11 installer to a directory using Winrar
Step 3:
Download the patched LegitLibM.dll (http://fmshaon.googlepages.com/LegitLibM.dll) and then copy-paste it to the “wmp11-windowsxp-x86-enu” folder and click yes when asked to overwrite.
Step 4:
Now run “setup_wm.exe” file in the extracted folder.