In windows 8 metro style app, how to update live tile while app is not running?

Question

In windows 8 metro style app, how to update live tile while app is not running ?

And the live tile start to run when OS system begin to start.

http://blogs.msdn.

Answer 1

Try background tasks @ http://code.msdn.microsoft.com/windowsapps/Background-Task-Sample-9209ade9