"HW rulez" mod (add-on) for HoMM3.

Perhaps I'll write here. Situation: we started – I'm on 3.808(7), 1.38. Opponent – host, version unknown, 1.38. The opponent saves on their side. I suggest loading my save – to make a move, then load their save – for them to move. When I generate a session under 1.38, saves from games without rulesets are visible. When I generate a session under 1.34, saves from 1.38 are visible, and the opponent logged in under 1.34. When loading, it crashes. When trying to join their game (latest mod v.vv), 1.38 ruleset: I'm not allowed in. There's a print screen showing that I'm not allowed.