Can older years of construction absolutely not be read out anymore ?

Moin together, question in the round: Has anyone else of you tried to read out his S/V40 from year ’95 or ’96 to possibly 2000? At my Bj ’98 (Mj.’99) a free workshop, an Opel , as well as a savvy private screwdriver and two Volvo workshops have tried to read out by now. There is simply no return… According to the one VolvoWorks which, out of personal interest of the boss, also likes to deal with old/youngtimers, it is probably due to the constantly new updates of the software, the older years of the year ( about 19 years) “fall down”… Can you confirm that? Would it be possible to read out anything with outdated software at all? Does anyone of you use an older reader or program? Does someone have a purchase link to it or has his old device yet to sell? In advance already best thanks for your answers ! the Manuel