As we all know Windows Vista and 7
come with a new re-designed Explorer which is pretty much different from Windows XP Explorer. Windows XP Explorer comes with Standard toolbar which allows us to easily add/remove buttons. On the other hand, Windows Vista and 7 Explorer come with re-designed Command bar
which is not customizable. You can't add/remove buttons from it.
Although Microsoft doesn't provide any option to customize the Command bar in Windows Explorer, you can use a Registry trick to add/remove buttons from it.
Following AskVG tutorial teaches you how to add/remove buttons from Windows Explorer's Command bar in Windows Vista and 7 using Windows Registry: How to Customize Windows Explorer Command Bar (aka Folder Band or Toolbar) in Windows Vista and 7