Originally posted by Nameless:

But in the context of this thread be carefull that the TO dont think that the chater must know the password. It can absolutly be that player A know the password but player B who dont know the password just use other tools

true, thats why my post covered all the bases. the legit way to accomplish all that and the fact there is no protection against unscrupulous methods beyond trusting the people you let in.