How to communicate via web socket in C#?

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C#

ASP.NET

WebSocket-client

I want to communicate via web socket in c# (kind of handshaking or so). Currently I hosted a wcf service . But on communicating i am getting the exception as below.

Access denied.

http://test-417vm2/CBWSI_Stub/ is the wcf service hosted with default document service1.svc and it is showing fine.

What I have tried:

client code

WebsocketServer websocketServer = new WebsocketServer();
           websocketServer.Start("http://test-417vm2/CBWSI_Stub/");
           Console.WriteLine("Press any key to exit...");
           Console.ReadKey();

server code
HttpListener httpListener = new HttpListener();
httpListener.Prefixes.Add(httpListenerPrefix);
httpListener.Start();
Console.WriteLine("Listening...");