it is not very useful. Maybe 14 years ago it was.

Anyway if you are interested on the matter, please follow the Corion's advice about the overall design of a web infrastructure.

Fore the mere restart of an IIS instance you just need one command.

iisreset [computername]

    /RESTART            Stop and then restart all Internet services.
    /START              Start all Internet services.
    /STOP               Stop all Internet services.
    /REBOOT             Reboot the computer.
    /REBOOTONERROR      Reboot the computer if an error occurs when st
+arting,
                        stopping, or restarting Internet services.
    /NOFORCE            Do not forcefully terminate Internet services 
+if
                        attempting to stop them gracefully fails.
    /TIMEOUT:val        Specify the timeout value ( in seconds ) to wa
+it for
                        a successful stop of Internet services. On exp
+iration
                        of this timeout the computer can be rebooted i
+f
                        the /REBOOTONERROR parameter is specified.
                        The default value is 20s for restart, 60s for 
+stop,
                        and 0s for reboot.
    /STATUS             Display the status of all Internet services.
    /ENABLE             Enable restarting of Internet Services
                        on the local system.
    /DISABLE            Disable restarting of Internet Services
                        on the local system.
[download]

This command i think it ship with every installation of the headache-generator-webserver (Aka IIS) from times of Winnt and is still valid with IIS 7.5. The command can operate also on a remote machine.

L*