Sorry to hear, that AxCrypt has changed that much, not just forced registration, but also password management.
Version 1.7 was way simpler to use and most importantly safer, different passwords and keyfiles for every single file.
I have moved to another encryption software, but honestly said, none is as good as 1.7 was, especially the ability to keep open files in a protected vault. I will miss it forever. Well, good luck with your new software, I hope your vision of it will be fulfilled and thanks for developing AxCrypt, until now. ;)