Matty, the Hella DDS system used the same autocom diagnostic software but the hardware Id's all started 500. these are the activation keys im looking for. All here mate www.rune.ro/DSUpdate/LicenteDS500.pdf (www.rune.ro/DSUpdate/Instructiuni%20DS500.pdf (www.rune.ro/DSUpdate/Licente150350.pdf (www.rune.ro/DSUpdate/LicenteDS100.pdf (www.rune.ro/DSUpdate/Instructiuni%20de%20instalare%20Upgrade%20DS100.pd f (f) by the way i have not find ani hardware key for my device. My serial (vci number) is not listed.:(. DELPHI DIESELMAX KEY DS150E DS350E KEY W oparciu o Dokumenty Google (6lqx-nGOb44mX4kIEpDA-12usejXrofSeDo7Wh0eHQqbg3galME-PtqMIjI&sig=AHIEtbRfZl7NXk8DR2V7wrQaqtF8rDnUfQ). Does anyone know where in the software is the location of the hw key and serial Hi there wizz2c i have not got a exact answer for you but pretty sure these new softwares are just licence keys as I have an autocom with a very very early hardware key which I was told was before the records were kept, they reckon mine was a pre release demo version so the only was to activate mine was to purchase a new licence, but the funny thing is I have cdp for pc and palm on seperate discs and the funny thing is that the hardware liecence keys are different for each soft even though for same vci no.