Could you please tell me who and how to play Heroes IV online? We know how to play, but we only installed the unlimited version yesterday, so now we have time and desire, but when connecting to the network, it gives us a computer as an opponent.

First of all, you need to find out what version of Heroes IV you have. Because you can't play on the basic version over the network; you need Warlords or Armageddon (and preferably Equilibris, because everyone here plays Heroes IV, and not just here, with Equilibris).

Secondly, you need to install Hamachi, a program that emulates a local network over the internet.
Thirdly, you need to find an opponent – I suggest visiting here.
And leave a post there with your ICQ number.

Fourthly, it is desirable to download and view these maps (662 KB), because most online games are played on them.
P.S. Only points 1 and 2 are mandatory. Good luck;)