Hi Jonny,
I can imagine klaus would have had some problems with pirating.
I would have thought the system he uses for protection would have made it pretty safe, though there's obviously some pretty smart hackers out there.
One thing I must say though, whenever something goes wrong, and one needs a new code for the software, he is very quick to respond.

Pity he dropped the individual versions because they were cheaper & a lot of people are fairly loyal to a particular brand of keyboard.
Probably to much work to keep all the individual versions upgraded .