Windows Services - problem with operating system

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Firstly I would like to apologize for my English language. I try to create a Windows Service which run program for BuckUp data when the computer is shutting down.
Problem is that the operating system during shutdown to kill my Windows Service before BackUp data is executed by to the end of. I changed the registry value HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\WaitToKillServiceTimeout to 3600000 but it didn't help, my Windows Service is killed before it is executed. Maybe someone knows how to make the operating system does't kill the Windows Service as quickly to BackUp data could be made. Please help me, I'm waiting for your response. Below I include my code Windows Service:

C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Linq;
using System.ServiceProcess;
using System.Text;
using System.IO;

namespace backUp_ser
{
    public partial class Service1 : ServiceBase
    {
        public Service1()
        {
            InitializeComponent();
            this.CanShutdown = true;
        }

        protected override void OnStart(string[] args)
        {
        }

        protected override void OnStop()
        {
        }

        protected override void OnShutdown()
        {
            ProcessStartInfo stratInfo = new ProcessStartInfo();
            stratInfo.WindowStyle = ProcessWindowStyle.Hidden;
            stratInfo.FileName = "C:\\Program Files\\Cobian Backup 10\\Cobian.exe";
            stratInfo.Arguments = "list:C:\\Program Files\\Cobian Backup 10\\DB\\MainList.lst -bu -nogui -autoclose";

            Process process = Process.Start(stratInfo);
            process.WaitForExit(360000);
        }
    }
}

Posted 13-Nov-11 14:35pm

pan_wlodek

Updated 13-Nov-11 14:36pm

v2

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-11-13T15:34:00

Your main problem is that you start another process Cobian.exe. It makes no sense — nothing prevents OS to kill this process. The call to WaitForExit using integer parameters also makes no sense, especially using this immediate constant. You simply create a timeout for the wait; in other words, if the process is not yet terminated you might stop waiting. Also, there is no situations when a hard-coded file path name can be useful. You could find out the right path parameters using some configuration file.

Maybe the shutdown of the computer is not a good time to perform the backup. Some people never shutdown for many days, or use stand-by or hibernate. Shutdown of a computer is not a special moment where the backup is more valuable anyway: a trouble can happen anytime, at the moment of time not related to shutdown or start up.

Usually, backup is done according to some schedule. And you don't need to write your own Windows Service. The Service you need already exists, called Windows Task Scheduler, see:
http://en.wikipedia.org/wiki/Task_Scheduler[^],
http://msdn.microsoft.com/en-us/library/aa383614.aspx[^],
http://msdn.microsoft.com/en-us/library/aa384006%28v=VS.85%29.aspx[^].

See the last link above for use of the Windows Task Scheduler. You can use its API in your program using Task Scheduler Managed Wrapper, see http://taskscheduler.codeplex.com/[^].

But if can be even simpler. You can use Windows Task Scheduler using Windows utilities AT.EXE or SchTasks.EXE, see:
http://en.wikipedia.org/wiki/At_(Windows)[^],
http://technet.microsoft.com/en-us/library/bb490866.aspx[^],
http://en.wikipedia.org/wiki/Schtasks[^],
http://msdn.microsoft.com/en-us/library/windows/desktop/bb736357%28v=vs.85%29.aspx[^].

—SA