The Windows Forms Timer event is not raised in a Windows service (820639)

MORE INFORMATION

Steps to Reproduce the Issue

1. Start Microsoft Visual Studio .NET.
2. Open a new Windows Service project by using Microsoft Visual Basic .NET or Microsoft Visual C# .NET.
   
   By default, Service1 is created.
3. In the toolbox, click the Windows Forms tab.
4. Drag a Timer control from the toolbox to the Service1 Designer window.
5. On the Designer window, double-click the Timer1 control.
   
   The Service1 Code window is displayed.
6. If you are using Visual C# .NET, add the following statement to the beginning of the code:

   using System.IO;

7. Add the following code to the OnStart procedure of the Service1 class.
   
   Visual Basic .NET Code

   'Set the interval of the timer to 3 seconds.
   Timer1.Interval = 3000
   Timer1.Enabled = True
   'Open the sample.txt file in append mode.
   FileOpen(1, "C:\sample.txt", OpenMode.Append)
   'Print text to the "C:/sample.txt file.
   Print(1, "Start")
   FileClose()

   Visual C# .NET Code

   //Set the interval of timer to 3 seconds.
   timer1.Interval =3000;
   //Enable the timer.
   timer1.Enabled =true;
   //Append the text to the sample file.
   StreamWriter writer =File.AppendText(@"C:\sample.txt");
   writer.WriteLine("Start");           
   writer.Close();

8. Add the following code to the OnStop procedure of the Service1 class.
   
   Visual Basic .NET Code

   'Open the C:\sample.txt file in append mode.
   FileOpen(1, "C:\sample.txt", OpenMode.Append)
   'Print the text 'Stop' to the C:\sample.txt file.
   Print(1, "Stop")
   FileClose()

   Visual C# .NET Code

   //Append the text Stop to the C:\sample.txt file.
   StreamWriter writer =File.AppendText(@"C:\sample.txt");
   writer.WriteLine("Stop");
   writer.Close();

9. Add the following code to the Tick event of the Timer1 component.
   
   Visual Basic .NET Code

    'Set the enabled property to false.
   Timer1.Enabled = False
   'Open the C:\sample.txt file in append mode.
   FileOpen(1, "C:\sample.txt", OpenMode.Append)
   'Print the text 'Tick' to the C:\sample.txt file.
   Print(1, "Tick")
   FileClose()
   'Enable the timer.
   Timer1.Enabled = True

   Visual C# .NET Code

   //Set the enable property to false.
   timer1.Enabled =false;
   //Append the text Tick to the C:\sample.txt file.
   StreamWriter writer =File.AppendText(@"C:\sample.txt");
   writer.WriteLine("Tick");
   writer.Close();
   timer1.Enabled =true;

10. On the View menu, click Designer.
11. Right-click Designer, and then click Add Installer.
    
    By default, ServiceInstaller1 and ServiceProcessInstaller1 are created.
12. Right-click ServiceInstaller1, and then click Properties.
13. Set the DisplayName property to Service1.
    
    Note It is a good idea to set the ServiceName property to Service1.
14. Right-click ServiceProcessInstaller1, and then click Properties.
15. In the ServiceProcessInstaller1 Properties window, set the Account property to LocalSystem.
16. On the Build menu, click Build Solution.
17. Click Start, and then click Run.
18. In the Run window, type cmd in the Open box, and then press the ENTER key.
19. At the command prompt, run the following command:

    installutil  WindowsService1.exe

    Note Your Service1 service is not installed if you are using any other service with the same name.
20. After your installation is complete, click Administrative Tools in Control Panel, and then click Services.
21. In the Services window, right-click Service1, and then click Start.
22. Wait several seconds, right-click Service1, and then click Stop.
23. Open the C:\sample.txt file.
    
    The text StartStop is displayed. The Timer1Tick event is not raised, and the Tick text is not printed to the C:\sample.txt file.