Where should I place the Application.Exit?

The current order of events are as follows:
1. the form loads using InitializeComponent (only two controls are loaded, a
button and the webbrowser control).

2. In the Form1_Shown I click the button
       private void Form1_Shown(object sender, EventArgs e)
       {
           button1.PerformClick();
       }

3. The button click event loads a url into the browser control and wires the
print event for document completed.
       private void button1_Click(object sender, EventArgs e)
       {
           try
           {
               string[] args = Environment.GetCommandLineArgs();
               string URL = args[1].Trim();

               if (!URL.StartsWith("http://") && !URL.StartsWith("https://"))
               {
                   URL = "http://" + URL;
               }
               webBrowser1.Navigate(new Uri(URL));
               webBrowser1.DocumentCompleted += new
WebBrowserDocumentCompletedEventHandler(PrintDocument);

           }
           catch (Exception ex)
           {
           }
       }

4. the print event fires, but IMPORTANT: the actual document does not start
printing until all these events are fired???
       private void PrintDocument(object sender,
WebBrowserDocumentCompletedEventArgs e)
       {
           try
           {
               // Print the document now that it is fully loaded.
               ((System.Windows.Forms.WebBrowser)sender).Print();
               
               //WebBrowserReadyState state = webBrowser1.ReadyState;
               //webBrowser1.ShowPrintDialog();

               // Dispose the WebBrowser now that the task is complete.
               ((System.Windows.Forms.WebBrowser)sender).Dispose();

               //System.Windows.Forms.Application.Exit();

           }
           catch (Exception ex)
           {
           }
       }

5. then the default dispose fires
       protected override void Dispose(bool disposing)
       {
           if (disposing && (components != null))
           {
               components.Dispose();
           }
           base.Dispose(disposing);

           //System.Windows.Forms.Application.Exit();
       }

6. The print job now starts? All my code is done executing when this occurs.

As you can see, I've tried calling Application.Exit in both 4 and 5 and they
are both too early.  I guess what I am looking for is another event, one in
the winforms that runs after the print job has finished.

I'm sure its an easy solution, I just dont work with winforms often.

Thanks Again