I copied a folder from my PC with images and a GSS file to a memory
stick. I added the gPhoto exe file and tried to run it from the memory
stick when visiting friends. I didn't want to copy anything to the
friend's computer.

I first got the message that I needed to register, so I put in my
registration number. But then I could not figure out how to get the
slide show running. All I got was the gPhoto configuration screen. If I
started by clicking on the GSS file, I was asked what program to use
and had to browse through to the memory stick. This still didn't get my
slide show running.

Is there something obvious I'm missing? I would prefer not to make one
gigantic new self-executing file, as this just doubles the storage on
my hard drive if I save it. This is because I have lots of slide shows
set up on my PC. Depending on where I'm going, I like to copy an
appropriate on off to the memory stick to take with me.