At 05:42 AM 25/03/2006, Cosmin Prund wrote: >Hello everyone! > >I'm working on securing some of my applications right now. I've managed to >get "on/off" security working (ie: you're ether licensed or you're not >licensed) but now I'd like to add a few tones of "gray". Essentially I'd >like to add the ability to delay activating the product for a while. This >requires some storage for number of "runs" or "expiry date".
Hi Cosmin, one of the things I did a few years ago was to save such data in the same folder as the exe, but save it as a binary file with a .dll exension. Most people will leave them alone, and it's normal for a program to be accessing a .dll file, so if they are snooping it looks quite normal. If they do figure it out and delete the file, then your program simply exits after issuing an appropriate error. Another method is to save such data in plain view, but add a file checksum to the end of the file. If the user edits the file you'll know about it. Cheers, Chris. _______________________________________________ Delphi mailing list -> [email protected] http://www.elists.org/mailman/listinfo/delphi
