Za iskljucenje:
c:\>shutdown -m \\computername
c:\>shutdown -f -m \\computername - Forsira shutdown i u slucaju da se procesi ne zele prekinuti.

Za ukljucenje pogledaj postoji li u BIOS-u varijanta da mrezna ukljuci racunar.

Pogledaj mozda ti ovo odgovara:

This small command line utility makes possible to switch on a computer from a second one by sending a "Magic Packet". Both of computers can be located on the same LAN or on the different LAN segments.
http://www.matcode.com/wol.htm