Restore Show Desktop Shortcut

I accidentally lost shortcut button "Show Desktop" from Windows XP Taskbar's Quick Launch section. I tried various probabilities and combination but couldn't restore it. Though Windows+D command was handy but I wanted my shortcut button back. Finally after some googling got a simple solution ...

Create a file with name "Show Desktop.scf" with following contents:
[Shell]
Command=2
IconFile=explorer.exe,3
[Taskbar]
Command=ToggleDesktop

Drag this file to Quick Launch area and it works.

Another simple way:
click Start>Run and type this command: regsvr32 /n /i:U shell32 and done.