HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

I don't know if it's allowed to raise questions that have probably already been asked, but since I couldn't find anything on the topic, I'll ask this way: 1) Will the game work normally if I have the patch installed, but my opponent doesn't?

2) I saw a very interesting option for choosing heroes in the tavern. How do I disable it? Will it work if the opponent doesn't have this patch?