Save your development time by DirectChat Client & Server. Both of projects created using C/C++ (Win32 API) with purely DirectPlay code. It's not only a simple chat room, you can create chat group in Game Server and the players can join the they wanted group. This package included both of Client and Server workspace. You can apply it to be a simple or multigroup chat room, messenger-like application, or games such as Poker, BlackJack or another board game that you want to grouping support.