there are these three trial versions of programs (actually games) that come from the same company. these three programs will give you a number of times to play the game, and you will have to register for it to continue playing. of course there are hackers in the internet world who will teach you how to jump off those restrictions, using hacking softwares. i am really not into doing that. however, with the three trial versions i mentioned above, they actually secretly give you some sort of the full version. it is really hidden, but within your computer. i accidentally noticed it in one program and then found out that the other two programs use the same weak protection. there is no need of any hacking software. indeed, there is no need to get the registration code that will get the program into full version. it is because the full version is right in your computer - it is just hidden. i know that the programmers deserve to receive money for both their abilities and efforts. however, is it illegal to use that hidden full version?