Yes you are right there, Thats why I wrote ; this EULA itself is illegal at this point. You must have been typing your reaction while I added "at this point" A am not a lawyer, nor native english speaking , most informative is the linked article itself. This means when re-selled software needs to be activated via the internet after being installed on the new-licence-holders-computer ( various add-ons need such a registration even periodically) the initial vendor must cooperate and has to register the new user enabeling him to use the software AND provide him with updates the same way he does with first hand users. Things get really complicated at this stage. Vendors from outside europe might refuse to co-operate ( they are not operating under european law) vendors from inside Europe can be forced to follow the european rules. This brings us to an interesting phenomena . IF you buy a licensce and you want to sell it ( after a period of use, or not ) on the second-hand-maket in Europe , just buy it at an european vendor. Developers-vendors who do not like the idea of being sold on the second hand market ( and being forced to re-activation, service and maintenance), they should just not use european resellers. No need to say, on-line activating is a good way to keep things a bit in hand.( at least outside Europe) Just providing the customer with a zip file without any need to activations is quiet normal and the same time madness. In my opinion giving the second-hand-software-market the green light is madness too. BUT thats not the question here, the question here is, is selling used software legal. For the European Community the answer is YES.