Introduction This application is my attempt to create a smallest chat application using Web Sockets. I am trying to use the least amount of code to show how to use Web Sockets. Web Sockets is the technology that lets you push the data from the web server to web browser. Background To use Web Sockets your web server needs to have ASP.NET 4.5 or higher and WebSocket Protocol installed under Add Roles and Features > Server Roles > Web Server > Web Server > Application Development > WebSocket Protocol.