Viber screenshot - Windows 8 Downloads
Viber full Windows 8 screenshot
Send free messages as well as make free calls to other Viber users

Viber Windows 8 description
Viber for Windows lets you send free messages and make free calls to other Viber users, on any device and network, in any country! If you plan to carry on with your normal activity on the PC but still want to keep an eye on Viber, you will be pleased to know that it supports message notifications that pop up from the system tray.