Re MEMORY STICK
This should be possible. You should be able to copy the contents of C:\Program Files\Render Plus Systems\3D_PDF onto a memory stick, place it into a computer and run skp_to_3d_pdf.exe from the memory stick.
We will give it a try.
However, I can think of a few problems.
Some Visual Studio DLL's may not be on the target computer.
If we discover what they are, then they can be copied onto the memory stick and that may work (or we may have to create a new release of 3D PDF with the missing DLLs)
You will not be licensed to run RPS 3D PDF on the target machine.
I don't know how we will solve this problem. We can discuss it after you get the comcept working properly.
There are 2 other solutions to the general problem.
You can "remote log in" to your own computer, which is licensed for RPS 3D PDF from the client machines, run RPS 3D PDF remotely, load a file from the client machine and process it.
You can bring your portable computer with you to the client location, put the .SKP file from the client machine onto your portable, and use your portable to create the PDF file.