Chatterbox is a simple but very functional and cool application you can use to communicate with your friends and the ones you love. There's no need any more to make expensive phone calls , all you need to have a long conversation with your family is a chat application that allows you to share information, files and many things more.
This is the best one you will be able to find. It's really light and it won't consume your system resources or hard drive space. It comes with a user friendly interface and with the exact amount of features for you to customize its main window and settings.
Compatible with every Windows operating system in the market.