Technical issues with Heroes III.

Hello everyone, searching for a solution to this issue didn't yield any results (maybe I didn't use the search function correctly). The problem is that when I start Heroes in multiplayer mode, the game crashes and displays an error related to the file RMTSEXRC.BIN. My system is a pirated version of Windows 7, and I've tried launching the game through both HoMM and Ranger, but the error persists. The Heroes version is complete. Here's a screenshot of the error window: http://s44.radikal.ru/i103/1208/dc/1ef22d7d65b8.jpg Interestingly, this file wasn't present in the Data folder at all. My friend, who downloaded the game from the same source as me, doesn't have this issue (meaning the game doesn't require this file for him). I downloaded the file separately and placed it in the folder, but the error still occurs. Has anyone else encountered this problem?