Windows NT and Windows 2000 do occasionally crash. When this happens, your server generates a BSOD and waits for an administrator to reboot it. It probably more effective have the server write a crash log file and reboot. Assumng the crash was not caused by a hardware failure or fatal bug, then your server will reboot and be processing request quickly. To have your server automatically reboot rather than generating a BSOD, apply the following registy hack:

Hive: HKEY_LOCAL_MACHINE
Key: SYSTEM\CurrentControlSet\CrashControl
Name: AutoReboot
Type: REG_DWORD
Value: 1 enable

From TechRepublic