Does what it says. There are even very nice startup screens to download from thier website,

Whatever you do, DO NOT DOWNLOAD AND INSTALL THIS PROGRAM! If you install it, it will change the kernal of windows so that it bypasses your BIOS when you restart which makes it near impossible to format, reinstall an opersting system or anything! Right now, I WOULD be running my brand new copy of Windows Server 2003, but instead I am confined to XP Pro forever! Downloading this will be your own demise! Consider yourself warned