I have created a working portable ZAV app on a USB drive. I've tried
various ways of copying the "master" usb drive to other drives.

I have also tried a drive image program. However when I try to use any of
the other usb drives my app gives an error along the lines of the sandbox is

If I want the same app on a usb drive, do I really need to compile each one
separately? Is there a simple way to duplicate the app on several usb