This is a simple form that converts opcodes as server sees them to/from various values used by WoW client. Don't expect it to magically give you all the opcodes. Fields explanation: Opcode (hex/decimal) - opcode as server sends and receives it. Special (hex) - value used in NetClient__ProcessSpecialOpcodes / NetClient__JAMClientDispatch. Auth (dec) - value used in NetClient__HandleAuthOpcodes / NetClient__JAMClientConnectionDispatch. Offset (dec) - offset of the handler inside ClientConnection object. Converted (dec) - offset of the handler inside Handlers array of ClientConnection object.