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Simas,
besides version 1.0 (always sold in a red box by Buka), the official versions of Heroes of Might and Magic IV include the expansions The Coming Storm and Whirlwinds of War. The mod Equilibris 3.42 and 3.51 can also be included in this list. The other expansions are pirated and are usually not discussed on the forums.
ZYbr, Leshij, General ZeT, have you figured out the KMO?