Cobra,
We have had this discussion many times before, and here is the answer provided by Jim Sachs:
The program must fit on a floppy. Each time I make a programming change (between 20 and 50 times a day), I have to put the program on a floppy to test it on all my different machines. Most of my sales are to foreign countries, and the vast majority of those machines only have floppy drives. As always, users are allowed to copy the Aquarium to all of their computers, not just ones with Internet connections. In fact, I insist that they try it on the target computers to make sure it works before purchasing a Key Code.