WebSocket4Net
a .NET websocket client implementation.
It originated from SuperWebSocket WebSocket Client. For better developing of the websocket client, it was separated from SuperWebSocket and was renamed to WebSocket4Net.
WebSocket4Net will provide websocket client implementation for many different kinds of runtime:
- .Net 2.0
- .Net 3.5
- .Net 4.0
- Mono
- Silverlight
- WindowsPhone
- Mono for Android
- MonoTouch (Not provided yet)

It is compatible with many websocket drafts:
NuGet Package: http://www.nuget.org/packages/WebSocket4Net
Demo code:
using WebSocket4Net;
WebSocket websocket = new WebSocket("ws://localhost:2012/");
websocket.Opened += new EventHandler(websocket_Opened);
websocket.Error += new EventHandler<ErrorEventArgs>(websocket_Error);
websocket.Closed += new EventHandler(websocket_Closed);
websocket.MessageReceived += new EventHandler(websocket_MessageReceived);
websocket.Open();
private void websocket_Opened(object sender, EventArgs e)
{
websocket.Send("Hello World!");
}
Recommended .NET WebSocket Server
SuperWebSocket - http://superwebsocket.codeplex.com/
Consult/feature request:
kerry-jiang@hotmail.com
Author's LinkedIn profile: http://cn.linkedin.com/in/kerryjiang