Moving on a memory stick is either EVSRI "master disk" or using a RA Dongle
Master disk still works for Logix 500 but may not in future software updates, Logix 5000 it works up to and including V19, V20+ you must use FTA
The Dongle is similar to Master disk in you can carry the activation around in your pocket, the difference is the Dongle method still uses FTA
Of course there are work arounds that are less than legal, however I do not think that would be a welcome discussion on the site