Read original post at Loic Rebours's Blog
This article is the second in a series of eight about Windows 8.1 applications development using XAML & C#. This series is intended for Windows Store Apps developers who want to discover Windows 8.1 new features and APIs. You need to have an understanding of Windows 8 development before reading these articles.
Windows 8.1 Pro and Visual Studio 2013 Ultimate are used in this series. At the time this article was written, these tools are in preview. The relevant topics will be updated when the final version will be available.