Rankest of 'newbies' here. Recently installed DC...22 (on ASUS CM6870, Win7Pro); did not uninstall DC...18, but, '18 is in a separate directory. As indicated above, every attempt to boot DC...22 'pops-up' the pane asking that I enter the 'activation code.' My copy of DC...22 was downloaded (from IMSI, I believe, rather than a 'reseller') and an email from the seller provides the req'd serial # and activation code, but surely a user (more accurately one "attempting" to use this feature-rich software) isn't normally required to keep re-entering the darned activation code!
And, as an added 'plus', now, when I try to boot DC...18, I'm told that my trial period has ended, yada, yada, and would I enter a valid serial # and activation code for it! My copy of DC...18 was purchased locally, as a disc (and possibly deemed, "Educational" version), and did function normally for a few years, on an XP machine.
Elsewhere on this forum (perhaps some time back), DrollTroll observed that today's operating systems are getting more and more complex (Hear, hear!). IMHO, today's programmers and 'team managers' of 'mega' software development are to be congratulated on getting it as nearly right and glitch-free as they do!
Thanks and best regards,