How to play Heroes of Might and Magic III online via Hamachi?

I've been trying for a long time to find information about the game online, specifically one with autobattle disabled. I play The Shadow of Death from Buka with a friend online, using Hamachi. We played with autobattle enabled, but we still want to fight each other in real-time. Is this possible? If we disable autobattle in the options, the game freezes. Does this depend on the version? How can I fix this? And another question: how can I find out the version of the installed game?