Method for extending a program through a copy protection function

摘要

The method involves determining a decision stage of the program in which information influencing further progress of the program during program running is specified depending on the current run state of the program and converting the decision stage with code implementable exclusively in the copy protection unit (2) that is implemented in the copy protection unit when the program is implemented. Independent claims are also included for the following: (a) an expansion arrangement (b) and a computer program product for implementing the inventive method.