Turning off or rebooting XP involves a several-step process: click the Start menu, choose Shut Down, and then select Shut Down or Restart. If you want, however, you can exit or reboot much more quickly, by creating a shortcut that enables one-click shutdowns. You can also use the shortcut to customize the shutdown or reboot—for example, by displaying a specific message or automatically shutting down any programs that are running.
shutdown -r -t 01 -c "Rebooting your PC"