Create custom sounds replacing xp default sound.

If you want to change the sound of startup sound,shutdown etc 

 1.first cut a sound or music into wav format(virtual dj will do it)(below 30 sec).
 2.go to your windows drive(C:/) then windows/media then move the file which you wish to change to a backup folder.(can be used later).
 3.move your customised wav file to the media folder.
 4.rename this file to the name of the original file.
 5.enjoy!!