Defeating a 40-year-old copy protection dongle
That’s right — this little device is what stood between me and the ability to run an even older piece of software that I recently unearthed during an expedition of software archaeology. For a bit more background, I was recently involved in helping a friend’s accounting firm to move away from using an extremely legacy software package that they had locked themselves into using for the last four decades. This software was built using a programming language called RPG (“Report Program Generator”), which is older than COBOL (!), and was used with IBM’s midrange computers such as the System/3, System/32, and all the way up to the AS/400. Apparently, RPG was subsequently ported to MS-DOS, so that the same software tools built with RPG could run on personal computers, which is…
