Restore Show Desktop icon

Question
I accidentally deleted the Show Desktop icon which sits normally on the bottom left hand corner of the Taskbar. How do I restore the icon?

Answer

For Windows XP
The Show Desktop icon can be restored using any of these methods:

Method 1: Manually re-create the Show Desktop icon
Click Start, Run, and type Notepad.exe. Copy the following contents to Notepad.

[Shell]
Command=2
IconFile=explorer.exe,3
[Taskbar]
Command=ToggleDesktop

Save the file as "Show Desktop.scf" (with quotes, in order to prevent Notepad from appending .txt extension). Now, drag the file to the Quick Launch Toolbar.

Method 2: Using the Regsvr32 command
Click Start, Run and type the following command:

regsvr32 /n /i:U shell32.dll

The Show Desktop icon file should be available now.

Method 3: Copy the file from another user account
Every user account will have a copy of Show Desktop.scf file. Search for the file named Show Desktop.scf in your computer by logging in as administrator. Copy it to your user profile path here: 

%Appdata%\Microsoft\Internet Explorer\Quick Launch

(Type the above path in Start, Run dialog)