Windows Registry Shell Extension enables the registry to be accessed from the Windows Explorer. You can open the Windows Registry from Computer directly.
Since the built in registry editor, RegEdit, is not so simple and easy to use, Windows Registry Shell Extension does a great job of simplifying the task of browsing Windows Registry. Download the installer from the below link and install. After installation, a virtual folder will be created in Computer from where you can browse the entire Registry. The virtual folder works in Windows Vista and Windows 7 so most probably this utility will work in Windows Vista and 7 only.