we've released a tool we developed internally to help us with Ventuz installations. It's called Glare WatchSquirrel and is available on the Ventuz Store:
The WatchSquirrel is a useful tool when dealing with Ventuz-based installations. It provides watchdog functionality and will reboot the machine in case of a problem. It also helps with logging and focus loss and provides a mechanism to reboot the machine remotely without the need for any remote tool, simply by using a killswitch.