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PC Floppy Copy Protection: Softguard Superlok
This is part 2 of a series on PC floppy copy protection methods. You can read Part 1, covering Formaster Copy-Lock here . Softguard System...
If Sierra's goal was simply to prevent casual copying, they didn't have to bother with licensing Superlok at all, a simple bad CRC on one sector would have sufficed. It wasn't just malware developers and crackers causing headaches for Softguard Systems - there was a adversarial commercial ecosystem at play, with various companies producing software that advertised the ability to defeat Superlok copy protection, both version 2 and 3. Some publishers eventually decided that watching this cat-and-mouse game continue was not worth the potential issues experienced by end users, and dropped disk-based copy protection entirely.
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