Show Desktop is missing from the quick launch toolbar

The following steps show how to restore the 'Show desktop' entry in the quick launch toolbar. Open Notepad and type/paste the following code:

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

Save the file with a .scf extension in the quick launch folder.

Here's the path to the quick launch folder: C:\Documents and Settings\[USERNAME]\Application Data\Microsoft\Internet Explorer\Quick Launch

Another method is to type this command in run or the command prompt: regsvr32 /n /i:U shell32.dll