[_mlbt]

Yes because the license key was easy to write down on a sticky note and provide it with the copied floppy disk. With this mechanism you either needed to have a copy of the entire manual, or at least all the answers to the questions it would ask.

[StanislavPetrov]

I remember one of the later Wizardry games (I believe it was Return of Werdna) came with a pamphlet full of codes that was printed on very dark brown paper that made it very difficult to make legible photocopies.