Hola, estuve probando con WebSocket y un servidor en VB6, el problema es que me llega ésto...
Cliente conectado. IP : 127.0.0.1
Cliente : GET / HTTP/1.1
Upgrade: websocket
Connection: Upgrade
Host: 127.0.0.1:1200
Origin: null
Pragma: no-cache
Cache-Control: no-cache
Sec-WebSocket-Key: otn22B4thbc+FScR56NQDA==
Sec-WebSocket-Version: 13
Sec-WebSocket-Extensions: x-webkit-deflate-frame
User-Agent: Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1469.0 Safari/537.36
var connection = new WebSocket('ws://127.0.0.1:1200');
connection.onopen = function () {
connection.send('Hola');
};