Remove the schedule startup and tell the program to make a new one and have it run as normal.
So far I am leaning towards something with the cleanup of the controls. As for you other program I am wondering if something with its controls loaded into memory get in the way of mine in so odd way.
Try running your other program manually then the reg backup, does it still crash?
I dont think it is the VSS because the backups are Finishing. We have confirmed that the crashes have to be happening at shutdown of itself. Which tells me it has to be something with the cleanup of the controls.
Shane