[m.savazzi]

Hi everyone,

Is it possible to use the Windows 10 UWP app as a shell with this?

Not sure but my guess would be that is not possible.

Let me be more precise:

Some apps (for example, Outlook) you can launch at startup by creating a shortcut. You press Windows-R, type in "shelltartup" to open the startup folder, then you right-click Outlook, Open File Location, and right-click-and-drag to create a shortcut in the startup folder.
But other apps (for example, Mail) seem like you can't do that. (See another question).

So for apps like Mail, how can you make them launch automatically at startup?

Edit: An answer was found in the above referenced question. To create a shortcut for a Metro app like Mail, People, or Calendar, just drag it (normal left-click and drag). It works if you drag from Start Menu/All Apps, but does not work if you typed a search into the start menu. This works in Windows 10. I don't know if it works in Windows 8 or earlier.

So there are some hints on how to "execute" an UWP