That is really handy to know - I also wondered if there was any way within Shavlik to call another task when it completes? Our Altiris housekeeping task also completes some other functions on each server so it would be good to use this utility if possible.
Thank you for your reply.
I am glad to help! Here is a landing page Custom Action, Custom Patch, and ITScript Information and Troubleshooting that has links to everything you need to know about custom actions that we have on the Community. Basically a custom action is a remote command prompt run as the system account so you can do a ton with them including running batch files, running installation of unsupported patches, etc.