Shutdown all computers in a network question

[JC00]

Is there a software that can shut down all computers in a network? I can do that the long way using a VNC software but I'm looking for a more instant solution.

[EzyStvy]

There are tons of shutdown apps...Even the built into XP shutdown.exe will do it..You could probably create a batch file...

Creating a Shutdown/Reboot Icon


WindowsXP has a program called SHUTDOWN.EXE which allows you to easily create icons to shutdown or restart your computer.

To create a shutdown shortcut on the desktop:

Right click on an open area of the desktop
Select New / Shortcut
Enter in "shutdown -s -t 00" - no quotes
Press the Next button
For the name, enter in anything you like. I just use shutdown. Click on the Finish button.
For a reboot, enter "shutdown -r -t 00"

Shutdown [{-l|-s|-r|-a}] [-f] [-m [\\ComputerName]] [-t xx] [-c "message"] [-d[u][p]:xx:yy]

Parameters

-l - Logs off the current user, this is also the defualt. -m ComputerName takes precedence.
-s - Shuts down the local computer.
-r - Reboots after shutdown.
-a - Aborts shutdown. Ignores other parameters, except -l and ComputerName. You can only use -a during the time-out period.
-f - Forces running applications to close.
-m [\\ComputerName] - Specifies the computer that you want to shut down.
-t xx - Sets the timer for system shutdown in xx seconds. The default is 20 seconds.
-c "message" - Specifies a message to be displayed in the Message area of the System Shutdown window. You can use a maximum of 127 characters. You must enclose the message in quotation marks.

[JC00]

Thank you.

[mairving]

We use a shutdown .cmd file at work to reboot a couple of servers. It looks like:
shutdown -t 30 -r -f -d p:4:1 -c "Scheduled restart" . Then the script is scheduled to run at a certain time. This is Windows 2K3 server so there are a few more shutdown options.

[JC00]

I've been trying the commands but I always get an access denied problem. What should I enable on the computers so that I can get access to them?