Leoguard

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Anti piracy solution in VC++ and PHP codes with IPN via PayPal. Protection features include antidebuging time limitations, hiding password from end user and third parties processing payments , ability to modify algorithms at will.
Trial users access is registered at MySQL database.
Main features of the solution:
Registration of legitimately sold application is made via Internet without showing a password to user. Optionally manual registration is possible for users from counties not covered by PayPal or who has firewall limitations for Internet access.
Hiding the password in scripted registration file that is sensitive to practically any modification of this file that prevents finding positions of password letters and reveal the password. Even if hacker will steel password from database on your site it will not break that final protection wall .
You will keep all algorithms and keys for password calculation for yourself on your site without revealing them to anybody from third parties

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