Kick off Automator workflow on shutdown

I’m still new to OS X (only this year) and recently discovered the power of Automator. Just for information, I just installed Leopard on my Macbook. How would I (if possible) setup OS X to kick off Workflows on shutdown? This can apply to Tiger as well…I’m hope it is not that much different.


There are only two ways I know of (unless something has been added to Leopard I don’t know about yet):

Scenario ( is where it used to be), and SleepWatcher (which is a shell script). Both enable triggering a script or Automator workflow on wake, on sleep or on idle (not sure about SW here)