Without Hamachi, disconnections occurred constantly.
With Hamachi, I personally manage to play stably by following these conditions:
1. Compatibility with Windows 95 on both computers;
2. Disabling both types of sound in Heroes on both computers;
3. Playing in windowed mode on both computers;
4. No other tasks running besides Heroes and ICQ on both computers;
5. A stable map.

Орден Феникса – харизматический :) лидер