This is a Korean Windows port of Rockman (a.k.a. Mega Man) X7.
Included is an official patch (I'm not sure what it changes), and translation patches by Twig for both English text (which also changes "Rockman" to "Mega Man", etc.) and English voices (they're Japanese by default, and you can leave them that way if you prefer). More info here:
Alas, I haven't been able to find a no-CD crack that does not contain viruses or trojans, so I had to leave that out. The game is still playable when burned to a disc, though.