title: Is it possible to write a App.PrevInstance Replacement to give real time information
body: <p><code>App.Previnstance</code> returns a value of <code>True</code> or <code>False</code> depending on whether a previous of the program is running when this instance starts.</p>
  
  <p>Subsequently if the previous instance is terminated the value of <code>App.PrevInstance</code> does not change.</p>
  
  <p>Is it possible to write a function that would be able to determine at any moment if previous 
  instances are in existence? </p>
  
  <p>I guess that for this you would need the date/time processes started to be available.
  As this information does not seem to be available from the task manager I wonder if windows stores it at all?</p>