This sample pack includes all the app code examples developed and updated for Windows 8.1 RTM. These samples should only be used with the released version of Windows 8.1 and Visual Studio 2013 RC. The sample pack provides a convenient way to download all the samples at once. The samples in this sample pack are available in C#, C++, and JavaScript
Direct download link: http://go.microsoft.com/fwlink/?LinkId=322042