I’ve searched the web and can find zero about this. Are there any official means for providing copy protection for commercial rhino plugins? I’m using C++ here, not C#
Answering partly my own question. I found this
There is no official way to license a Rhino plug-in. All 3rd party developers get to determine if and how they want to license their product and if they want to try implement some kind of copy protection.
The sample code you’ve found demonstrates how a plug-in can participate in the Zoo licensing system. This is, of course, optional.
For more on the Zoo, see the Zoo section on the following page: