Checking if an instance of your app is already running

I have written an application for a customer and they have by mistake opened the package several times on there machine. How can i check to see if my app is already running and then activate it.

VB Code:

' Check for a previous instance of the application
   If App.PrevInstance Then
 
      ' Display message to the user and terminate this instance
      Call MsgBox ...
 
      End 'Terminate the application
 
   End If

I'd check for App.PrevInstance in a Sub Main on startup and use an Exit Sub rather than an End.

Quote:

---

Originally posted by GUILogic
How can i check to see if my app is already running and then activate it.

---

http://www.vbworld.com/api/tip125.html