title: How can i set the focus to application which is already in running state?
body: <p>I have developed a C# Windows application &amp; created a exe of it.</p>
  
  <p>What I want is that when ever I try to run the application, if it is already in running state, then activate that application instance, else start new application.</p>
  
  <p>That means I don't want to open same application more than one time </p>