Cancel auto-restart GSS

Hello everyone,

I'm using WinPE 3 to create and restore images remotely. 

I would like to know how it could be possible to cancel the auto reboot that Ghost does once the image is complete, because I would like to run a command ONCE ghost is done. I could obviously run it at the beginning, but It's not what I want.
I want it ran once ghost is done, but he reboots automatically.

Thanks,

Raphaël