Can I run an app without GUI on Windows Phone 7, 7.5 and 8? <p>On WP 7 and WP 7.5 I have to develop the app on C#, nonetheless, on WP8 I can develop an app on native C++</p> <p>Assuming the corresponding programming language, I was wondering if it is possible to run a process or an app without GUI on Windows Phone 7, 7.5 and 8.</p> <p>Is it possible? How can I do it? Any example around the web?</p>