Custom uninstall method

Ok here is what I have:

Code:

---

[RunInstaller(true)]
  public class Start:Installer
  {
     
      public Start():base()
      {
         
      }

      // Override 'Uninstall' method of Installer class.
      public override void Uninstall(IDictionary mySavedState)
      { 
        if (mySavedState == null)
        {
            Console.WriteLine("Uninstallation Error !");
        }
        else
        {
           
            MessageBox.Show("uninstalling now");

            base.Uninstall( mySavedState );
        }
      }
  }
}

---

This class is called as an uninstall Custom Action in my setup project.

Now...how do I get the MessageBox to show? Where the messagebox code is now I once had much more code but I was receiving a savedstate error ("The savedState dictionary contains inconsistent data and might have been corrupted"). I then moved the code after the base uninstall, but it was never getting executed.

Any help would be great.