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by Logans_Run 1209 days ago
If memory serves (and it was a long time ago) Win98, Office 97 and NT4 all had an easy to guess key. As long as the ABC (product type eg. Pro, Home) followed by the -xxx (first two digits added up to 9 as the last digit eg 639) -xxxx and the last 4 digits also added up to 9 as the last digit) all would be good and passed all the validation checks. A product key of xyz-000-0000 would work although it was a bit obvious where as something like fgh-729-32139 would sail through.... Ah, the good ol' days