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Guys, I bought a licensed copy of the very first Heroes of Might and Magic V. I have a key, but right now I have HoMM V Tribes of the East installed. My friend is using the key from that disc. Does this mean that in order to play the Orcs version online, I need to buy a licensed copy of the Orcs expansion (basically, buy a key)? It's frustrating because I have an unused key. But when I launch the Orcs version and enter the key, it says it's incorrect. However...