Tracking down a reboot using DOS commands

By Sandra Henry-Stocker, ITworld

When one of only a handful of Windows servers that I manage dropped off my radar for a while, I wasn't sure what to think. I had been running an application, for which this system was the server and it stopped responding. When I tried reconnecting, it was clearly not available. The system was rebooting, but it took me a while to figure that out. How do I go about determining if a Windows server has rebooted?