In Babbage's name I don't want to have to use a hardware dongle!!!! They can get lost or stolen or damaged, or borrowed and not returned. I had my fill of dongles when I was in charge of a labful of computers for students to use, and two programs called Autocad and K-Space came with dongles (alias hardware keys, I suppose). And it was not long before someone came with what was presumably a hacked warez copy of Autocad on a floppy that didn't need the dongle. If the legit Avatar Lab sabotages the floppy drive, and the warez version does not, it would mean that the warez version would be better than the legit version.