I use some of the Windows Store delivered applications, such as Music, Netflix, Bing Weather and Bing Search quite often, but I also spend a lot of time in Visual Studio, which means that I am not in the Windows 8 shell, but I have access to the taskbar. Some Windows Store applications come with custom URI associations, which means that the application can be launched from anywhere in the OS, given that there is a scheme-to-app association in the system. If you just create a shortcut to, let’s say, microsoftmusic: (talking about a .lnk file), you will quickly realize that Internet Explorer will be intercepting the URI scheme association and will be asking you if you want to launch the application.