78 With developer tools, it’s feasible that a Windows Store app could itself provide an interpreted runtime environment for developing apps that would always run inside that tool. A Windows Store app cannot, however, directly produce another Windows Store app because the necessary packaging and deployment APIs are only available to desktop apps.
79 Another general overview that includes details on pricing can be found on Making money with your apps through the Windows Store on the Windows 8 Developer Blog.
80 To make a note, the Windows.ApplicationModel.Package class also provides a few details about the installed app package. Usage is simple, and you can refer to the App package information sample for more.
81 There is also a getProductReceiptAsync, but this is for future use and is currently not implemented.
82 If you see a null reference exception within WinJS.Resources.processAll, it’s probably because you’re trying to map resources for a WinJS control that hasn’t been instantiated.
83 These reports will not give you any personal information about your customers, of course. If you want to collect that, you’ll need to implement an opt-in registration system in the app that complies with requirement 4.1.2.