Show Desktop button was quite good and useful, but in Windows 7 Microsoft has moved it to the extreme right corner of Windows 7 Taskbar. You may feel difficult or don’t wanna use that corner button, so here is a free and portable app which bring your old Show Desktop button on the taskbar.See below snapshot :-
This Show Desktop utility is created by RealityTouchDesign.To use this app all you need to do this just download and extract it after that you will get a exe file just drag and drop that exe file to your taskbar to pin it. That’s it now you have your old Show Desktop button back in the taskbar. You may use following link to download this tool :-
You also like the following article after applying above :-