@tyler Yeah, I am familiar with DISM tool and already using that work-around. I am just wanting to use the tools provided by the GUI for WIMs managed by the application. Maybe I am just misunderstanding the purpose of the tool but here is what the docs say regarding the "is Driver?" property of the File / Copy module.
- When creating a universal image and you want to inject drivers during imaging, this option must be enabled to specify this module as a driver.
It seems a very convenient tool for creating and managing images, but I have yet to make it work successfully.