On sockwrite
From Scriptwiki
on 1:sockwrite:name:commands
The sockwrite event is triggered when mIRC has finished sending all of the data that you previously queued for sending or when the socket is ready for more writing.
Note: If you try to /sockwrite while there is still info queued in the send buffer, your new info will just be added to the end of the queue up to a maximum of 16384 bytes. Any attempt to queue more than that will result in an error message, so you should check how much info is currently queued by using $sock().sq (send queue) before trying to queue info on a socket.
