title: How to run application in background in Windows Phone?
body: <p>I want to develop a background application in Windows Phone 8. Like there is a flash screen and after the flash screen starts, immediately it would be moved to back ground. </p>
  
  <p>But the timer present in the application should be active from being in background and keep doing the task assigned. So, in the fore ground user can continue using the device and in background the app will run a timer and continue with the tasks.</p>
  
  <p>I have tried using Periodic tasks, but they get triggered once in 30 minutes and more. 
  But I want this app to be triggered once in 20 seconds.</p>
  
  <p>Kindly help me with some ideas.</p>