Skype4Java is an library which represents the Skype API as objects, with properties, commands, and events and notifications by Java. Using Skype4Java enables developers to make plug-ins on multi-platform and use good IDEs such as eclipse, IntelliJ and NetBeans. This project supports many functions of Skype API. We started implementation of Skype 2.5 and 2.6 functions. Skype is supporting Koji Hisa