I assume it just calls the send_text function in CA via a pointer. I doubt that's what the function is called, and disassembled its just a Hexadecimal number. So you could make the function return right after its called, thus disabling you being able to send messages =S. Or, not sure if this works, the packets may be encrypted, but you could just filter out all the packets that start with something that symbolizes a user's message, or just the message exclusively . Any attempt to disabled or otherwise hack the MCAH Public will result in a ban.