The login handler lets you have a function called as a player logs in or out. The function you setup will be called when the player logs in or out. The object will also give you a list of all the people who are logged in. This is a by product of its method of operation rather than anything important. It is quite possibly more useful to call users(). int add_login_call(string name, string function, string object); int remove_login_call(string name, string function, string object); string *query_players_on();