Shoutbox

Yeah because you are using the function all wrong.

LockMessenger is a function of the object MsgPlus.
LockMessenger as 1 parameter that accepts true or false.
true to lock WLM false to unlock it

js code:

---

function OnEvent_Initialize (bMessengerStart) {
    MsgPlus.LockMessenger (true);
}

---

And yes a boolean is either true or false nothing else.