"IS&T Software Update Bonjour Agent" - Any idea how to remove?

About 3.5 years ago I was an Apple employee. Once I left, I bought a MacBook Pro and restored all my files from a TimeMachine Disk image.

Ever since then (almost 4 years), every time I boot up my computer I get this alert:

I have no idea why this is coming up... I have gone through extension folders, plists, preference windows... I cannot find anything on my computer related to this. I also cannot find anything on the internet about anyone else having this issue. Can someone PLEASE help - it's driving me nuts!