Found this interesting post by Ina Fried yesterday on CNET yesterday. If you are running Windows 7, create a folder on your hard drive and give it the name
GodMode.{ED7BA470-8E54-465E-825C-99712043E01C}
The folder icon will immediately change to resemble the control panel icon.
You'll unlock all sorts of system controls. Granted many of the control are already unlocked and available at various places in Windows 7, but this creates a neat little place to manage your machine from a central location. As with ANYTHING Windows.... be careful.