I have a Volkswagen, Audi etc specific OBD2 scanner which at just under £100 is not of course up to Ross-Techs Vag-Com professional standards. However for a non Windows person it performs all the diagnostic functions I need. I understand VCDS is specific software for Volkswagen but have never fully understood why other manufacturers of diagnostic software don’t use that term when describing their functions even though many are identical. I’m guessing Ross-Tech have exclusive use of the VCDS acronym because Vag-Com was developed by them. So other software developers and hardware devices that can do the same job cannot use that term under copyright law. Am I over simplifying and missing something?