title: How to run application without activity in android version 4.X
body: <p>Actually my application is running a service only when boot completed. it runs fine in android 2.2.</p>
  
  <p>But when i install 4.0 android supported device it does not work. even after installation application is not running. I know after 3.X android have a change that application is not running when installed.</p>
  
  <p>So how only service oriented application run in > 3.x android version ? </p>
  
  <p>any help is appreciable. </p>