How to pin the Show Desktop to Taskbar in Windows 7
On Windows 7 the Show Desktop button has moved to the bottom right 
corner of the screen for quick access. Moving your mouse over it will activate Aero Peek and allow you to preview the Desktop without actually going to it. If you still want a “Show Desktop” icon in your taskbar, it’s possible.
This guide will teach you how to pin “Show Desktop” properly into the taskbar.
1. Firstly, you need to pin an item you don’t actually want in the taskbar.
2. You then need to create your own “Show Desktop” icon. You can download the Icon here, or do it yourself.
To do it yourself, open Notepad and paste the following code:
[Shell]
Command=2
IconFile=explorer.exe,3
[Taskbar]
Command=ToggleDesktop
When you save the file, select “All Files” from the drop down menu, and name the icon Desktop.scf.
Whether you download or create the desktop file yourself, make sure to save it into this directory:
C:\User\%USERNAME%\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\Taskbar
3. Right-click the item you pinned earlier and click on “Properties”.
4. Edit the Target Field to the following. Change the field yourusername to your Computer name. You can find this by opening the Start Menu and looking at the first item in the darkened area. Computer name is shown as the first item on the right side. Paste this code into the Target Field. Make sure to change yourusername.
C:Users\yourusername\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\Taskbar\Desktop.scf
5. Now to change the icon. Click on “Change Icon” and paste the following code into the Browse field and press Enter:
%SystemRoot%\system32\imageres.dll
The “Show Desktop” icon is located somewhere near the middle.
6. Your icon in the taskbar will not change unless you log off and log back in or end the explorer.exe process in Task Manager. Regardless, the icon should function like the old “Show Desktop” icon. Win+D also show the desktop.
Comments (1)
Sorry… Why try to change ICON in stupid and impossible method ????
SOLUTION WINDOWS 7
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Open Notepad, paste the following text:
[Shell]
Command=2
IconFile=imageres.dll,105
[Taskbar]
Command=ToggleDesktop
Save as “Desktop.scf” to the following directory:
C:\User\%USERNAME%\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\Taskbar
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In WINDOWS VISTA rispective icon is number “104″
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