It's DLL whitelist. If the message doesn't cause any issues with your game please just ignore them, if it's preventing you from launching the game you might need to contact BattlEye Support but read their FAQ first, its probable the DLL is blocked because you have malware on your PC and it's trying to hook on dayz, it wont ban you, it will just stop the injection.   http://www.battleye.com/support/faq/ support[at]battleye.com