Introduction - If you have any usage issues, please Google them yourself
BOX years of use for many years, is a mass on the instant messaging program (including client and server-side, as well as all source code). Code written in a bit ugly, but they can run up in the LAN and the Internet to pass the test. Server-side support for dynamic IP (that is, that is, you can use at home to set up a free server, no need to apply for a fixed IP address of the bureau, a prerequisite is that you must apply for a virtual host, put in a virtual storage server host IP address). If you are interested in their research, a detailed code. If you really want to commercialize this software, be sure to let me know.