   Need Help on Programming Online Multiplayer Game
  I want to create a online game. For startes I only want a basic client/server application. The client sends data to the server and the server sends that data to all other clients that are connected to that server.I've searched for various tutorials such as various WinSocket tutorials and Beej's Guide. But I'm looking for a very simple tutorial or source code for a C/C++ application for Windows (since I don't have any knowledge of Linux at all). Could anyone help me point to a simple tutorial or source that are easy to understand?My goal is to crate a 2D demo where you create and login a player. And then move around the player in a world together with other players online. And maybe even chat with eachother. I'm going to use either DirectDraw or OpenGL for the graphics.   
  This might interest you, but it is not for free: http://www.gameversity.com/Descriptions/Multiplayer01.html   