Hotkeynet net version

[MiRai]

Is this now still the right version to use with windows 10 and wow 7.3?

Whatever the latest version is, it's the only version, as development of HKN came to a halt several years ago. And, yes, it still works with the latest patch of WoW.

What about HKN2 or mojo?

All HKN related development stopped years ago, and, if I'm not mistaken, Mojo is a program for Dark Age of Camelot.

Is hotkey net still safe from the the Blizzard EULA terms?

Always has been, and most likely always will be.