The new version of the suite of communication Lync introduces several features that should improve the overall ergonomics. Microsoft yesterday released an update of its Lync app for Windows 8.1. It provides a series of new features intended to improve the use of the service. The first allows you to take control of split screens, applications and supports PowerPoint presentation during Lync meetings. Each user can control the volume of a call without changing the overall volume of Windows. The update also allows you to take or reject an audio or video call from the lock screen where it displays the name and profile picture of the user. The window of the Lync application can be resized to be displayed side by side with other applications in order to return to an application or a website. Finally; a tool to ease the search for contacts is available now.