I've seen plenty of post on that topic, and 3 main methods of activation can be concluded:
1) Start the standalone app as an Admin, and the old activation window will pop up -- that's a myth, doesn't work.
2) Go to https://www.cakewalk.com/My-Account/Offline-Activation , sing in to account, use the offline activation tool there -- I don't have an account and it's impossible to create a new one (it's a legacy site section).
3) Use Bandlab Assistant app, select Apps section and use offline activation from there -- Bandlab Assistant changed it's UI, so there's no App section or activation tool present.
So there's no working method to activate Z3TA+2 on the internet. Does anyone have any ideas?