This is how to create and pin Flip 3D shortcut to taskbar:
1. Right-click on any empty space on the desktop, and then select New -> Shortcut.
2. In the “Type the location of the item” text box, enter the following:
%WinDir%\System32\rundll32.exe dwmapi #105
3. Click on Next button.
4. Enter a name for the shortcut, such as Flip 3D or Switches between windows.
5. Click on Finish button when done.
6. A Flip 3D will be created on the desktop. Note that the icon for the shortcut created is the default file icon, which is pretty much very ugly. To change the icon, right click on the icon, and then select Properties. Click on the Change Icon button in Shortcut tab. Click Browse button, and then paste the following into File name text box:
%SystemRoot%\explorer.exe
The windows switching icon is listed as one of the selection available. Highlight the icon and click OK to change the icon.
7. Drag and drop the Flip 3D shortcut to anywhere you like, including Windows 7 Taskbar or Quick Launch Bar.
Alternatively, to pin the Flip 3D (Windows Switching) shortcut to Windows 7 Taskbar, right click on the shortcut and select Pin to Taskbar.