Does that mean I keep the existing computer, running dos, hooked up to my cnc and I send the files to the dos box via a windows machine via a dos box. Or do you mean that I should remove the dos program from the old computer and run it on a new machine via a dos box?
you can put win 98 on the dos box which currently serves as the controller, or if you have a dos based lan system you can just sen the g code to the hard drive in the controller box. If you have a person on the staff at your school who is proficient at the IT stuff he or she can probably help you do what you need to do.
I used to use lantastic , and eventually windows figured out how to fix things so I could no longer get them to work, that's when I started running in windows for communication and ran the machine in a dos window, or dos mode.