Abo-Zead,
What you want to do is too much like malware.
Yes, yu can power down your own PC because you are the owner and administrator.
Shooting down a remote machine invokes security rules.
To shut down 500 PCs, you need permission to control each one. That kind of power is restricted for general use. In other words, you can not do if.
How to shut down your own PC with software is well documented. The documents never tell you how to shut down hundreds of PCs. If there is such a program, such a script must certainly
malware and can not be reveled on this forum.
Noe, having said that, here is info from CH archives:
How to remotely shutdown another Windows computerTip
You need administrative privileges to access and shut down the computer remotely to complete the following steps.
So there.
Please read the whole thing. It is very accurate and update.
Can you explain why you are doing this?