Find CAB when installing from EXE

[PRSPower]

I am using Vista/Windows Mobile Device Center and I purchased a copy of Pencil Box Deluxe. I would like to turn it into an OEM so I can add it to my User_OEM folder.

Mental Motions the company that wrote Pencil Box only provides an executable install and not a cab install. When you run the install on your desktop it has to extract the cab files somewhere so that it can "install on your device next time it connects"

Does anyone know where to look for the extracted cab on a Vista machine?