I have the class within the client site, but since my service and rent per client want to prevent them from simply selling my service to others, I am wanting to put the class inside my server so that the client server I want to be able to get the class return from my server, so they would just have the files for the main generation that are the class are in my server, and do a validation of where the access is coming to be able to release, you can access those classes for example.
How would I do this?