PC Floppy Copy Protection: XEMAG Xelok

This is part 5 of a series of articles investigating various floppy copy-protection schemes seen on the IBM PC platform. You may wish to read the previous entries in this series: Part 1, covering Formaster Copy-Lock Part 2, covering Softguard Superlok Part 3, covering Electronic Arts Interlock Part 4, covering Vault Prolok XEMAG was a commercial disk duplicator that provided services to companies…