Drat!
Don’t you just hate it when you accidentally delete the ‘Show Desktop’ shortcut that sits in your quick launch bar. Well there is an easy way of producing a new one to save you some trouble next time.
Just a text file
Thats right, ‘Show Desktop’ is just a text file but with a .scf extension stuck on the end. So to make a new one, all we need to know are the contents of this text file. To save you googling around, here they are 
[Shell] Command=2 IconFile=explorer.exe,3 [Taskbar] Command=ToggleDesktop
How to go about making it
This is easy. In any folder, or on the desktop, right click and select New –> Text Document.
Immediately rename the file as ‘Show Desktop.scf’ and when prompted if you are sure you want to change the extension, click yes. Now, edit the file in your favourite text editor (notepad is the default windows text editor, I hope that you have something better!). Paste in the lines of text quoted above and save. Magically, the file adopts the pretty little icon and if you double click on it, the desktop is displayed. Now just drag this file onto your quick launch bar. Voila!
