Do you have TSSHUTDN.EXE on your system?? It was originally used to shutdown servers but works on workstations as well.

From a command prompt, type tsshutdn /? for a list of its subcommands and syntax. A command line of C:\WINDOWS\SYSTEM32\TSSHUTDN.EXE 0 /DELAY:0 /POWERDOWN will powerdown most Windows 2000 and Windows XP computers.


>>On my machine;
>>
>>Start, Administrative tools, Local Security Policy, Local Policies, Security Options, Shutdown: Allow system to be shut down without having to log on policy
>
>Yours must be some server version, right? Under "Start", I don't find "Administrative tools".