Creating a toggle desktop shortcut is not that easy as it hears. A specific file needs to be created to create this.
Open Notepad, write (or copy paste) the follows lines:
Command = 2
IconFile = explorer.exe, 3
Command = ToggleDesktop
Click File > Save as.. save the file as ” Desktop.scf ” (without quotation marks). Do not forget to change File type to all files from text :
The shortcut will appear where have saved it: