That's true. In my case, the program submits the email and lic key via php to an http address and then parses the response. I disassembled the code in IDA and I can clearly see that it's expecting a string response back.
But I can see how some programs might be expecting more than just a basic string, in which case it could get quite complicated.
Quote:
Originally Posted by tusk
The harder sometimes is to know what the response should "look like" from a valid licence check, before you can recreate it 
You might receive a full embedded class with objects and data etc... |