Messenger-Pigeon is an application developed in Java platform programming language as on purpose of no additional requirements of library or platform independence. Different LAN Chatting applications are developed in different programming languages, with different ways, interfaces and usage availabilities. Messenger-Pigeon is an application with client-server software architecture. The interface it is very simple and easy to use for all different ages. It is simple and easy of configuration and setup the server with the two different database sources (ODBC and MySQL). Messenger-Pigeon as an LAN Chatting Messenger can be used in business and home environment. It can save the money and time for distributing an important message to all users that are in the chat and can be used in Internet and intranet environments. It is secured way for chatting and communication. We believe that Messenger-Pigeon as an application will find a wide area of applications,first of all because it is simplicity,in other words the fact that it is easily used,its effectiveness, in the sense that it provides easy and complete results. It is hoped that the final product will reach the market and its end users.