We agreed to play Heroes of Might and Magic III online! (January 2006 - August 2010)

Anyone want to play? Join the Hamachi network Aravan, password postal, from 5:17 PM to 7:30 PM.

I would like to play, but I don't know how. What programs do I need? When I click on the "Play Online" button, it redirects me to three different websites, but nothing is clear. Please write how to play Heroes 3 online, what to do, and what to download.