Problems with a copy protection for my game

[regine]

I made a copy protection for my game which is working with a key. Then i made some tests and it is working, but for example if i want to play the game and i haven't got licens key i can start for example level 1 just by doing this:

rightclick on lv1.dat -> open with -> Packs Adventure(thats the exe of my game with the copy protection). And its starting level 1 without that i have to enter a license key. Is there any way to disable this? Maybe i could enter the copy protection into every data of the game, but i think it would be easier just by disabling this function.

[makslane]

You can open any level?

[Game A Gogo]

maybe create like a file when you first enter the activation thing, and for each level, load the activation file to check if it was activated, and if not, just made it close the game

[regine]

@makslane: Yes, i can open any level of the game without the copy protection.
@Game a Gogo: Maybe thats an good idea. I will try it.