Hello Lazarus, Sunday, June 14, 2009, 3:35:20 AM, you wrote:
HFR> some time ago a see a program in a diskette, that if the user wants to copy HFR> to another memory (the PC hard disk, for example) then was copy but was HFR> erased in the diskette, and the same in the other way. HFR> I want to know if somebody knows about this. That was an old protect method, if you copy the program with regular methods (copy) the new copy was not protected and refuses to run. If you want to copy the protection you must use the built in copy method which in fact was a regular copy followed by a destroy diskette protection and create the same protection in the new media. This kind of protection was useless since protected mode operative systems, which does not provide direct access to the mass storage media without low level driver. A cheap way to do this is to use a license key file which is is hidden, so your copy procedure will take care of it, but not the very basic users. Other way is to crypt pieces of your EXE using serial number of your media, your copy procedure will kill the original license key and generate the new one in the new media, but this will not prevent your software to be running in two, three, n, bit copied USB memories in example. -- Best regards, JoshyFun -- _______________________________________________ Lazarus mailing list [email protected] http://lists.lazarus.freepascal.org/mailman/listinfo/lazarus
