If you want to use a Windows Store App on a WE 8.1 Industry system as custom shell, this can be achieved using App Launcher.
App-Launcher can be enabled as a Windows feature via Control Panel or using DISM:
Dism /online /Enable-Feature /FeatureName:ISKU-EmbeddedWin8AppLauncher
No – enabling is not enough – there is some more work to do. You need to configure the launcher via WMI and Powershell to specify a user or group for the new app shell. See more details in the online docs (link above) for this, the docs accompanying the preview are outdated!
There are two things to keep in mind. The user under which the app is going to run should not be an administrator and you need to add the following registry key:
If you do not do this, your system may hang during login for the user in question. To hide the start screen, set the kiosk mode property to 1 during configuration.