Using Microsoft Sysinternals to open/close a program on several machines over a local Windows network.

open.bat

@echo off

rem Use the username and password of the administrator account on the remote machines.
set username = admin
set password = pass

rem Set the IP addresses and names of the remote machines.
set desk1name_ip = 192.168.1.200
set desk2name_ip = 192.168.1.201
rem repeat the above for all machines

rem Open Notepad.exe on desk1
.\psexec -s \\desk1name notepad.exe

rem Open Notepad.exe on desk2
.\psexec -i \\desk2name notepad.exe

rem repeat the above for all machines

rem reuse with pskill instead of psexec to close