Prolok

Prolok was a pioneering copy protection system developed by W. Krag Brotby and Vault Corporation in 1982.

Prolok was developed for Apple II, CP/M, CP/M-86, MS-DOS, Microsoft Windows and OS/2. US Patent 4,785,361 [1]

References

  1. ↑ "Patent US4785361 - Method and apparatus for frustrating the unauthorized copying of recorded data - Google Patents". google.com. Retrieved 2015-12-24.
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