Heroes 2 online. Applications. Issues.

Hello everyone! Could you please tell me if it's possible to play Heroes 2 online? We set up Hamachi with a friend, connected via TCP\IP, and it seems like the game is working. Everything is fine, but there's one problem – every few minutes, the game crashes, either on my end or his. We both have Windows XP. Is there a way to prevent the game from crashing? Maybe we should try using DOS mode?