Run command on client startup or wake
Is it possible for ARD to run a task when a machine starts up or wakes?
Support all Mac machines, Mac OS X (10.5.5)
You would want to configure this via a launchagent. Look at a program called Lingon, it can create them for you. Just configure it to run a certain command at startup, or every hour, etc. Then copy the launch agent over to the clients to the same directory.