Windows service logging user session starts (note this is a project type of windows service, not all files show)

Windows service Logging User sessions

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Install.bat

@ECHO OFF

REM Using the following directory is for .NET 
set DOTNETFX4=%SystemRoot%\Microsoft.NET\Framework\v4.0.30319
set PATH=%PATH%;%DOTNETFX4%

echo Installing UserLoggedOnService...
echo ---------------------------------------------------
InstallUtil /i UserLoggedOnService.exe
echo ---------------------------------------------------
echo Done.

packages.config

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="log4net" version="2.0.3" targetFramework="net45" />
</packages>

Program.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.ServiceProcess;
using System.Text;
using System.Threading.Tasks;

namespace UserLoggedOnService
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        static void Main()
        {
            ServiceBase[] ServicesToRun;
            ServicesToRun = new ServiceBase[] 
            { 
                new Service1() 
            };
            ServiceBase.Run(ServicesToRun);
        }
    }
}

Service1.cs

using System;
using System.Reflection;
using System.ServiceProcess;
using log4net;
using log4net.Config;

[assembly: XmlConfigurator(ConfigFile = "Log4net.config", Watch = true)]

namespace UserLoggedOnService
{
    public partial class Service1 : ServiceBase
    {
        private static readonly ILog Logger = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

        public Service1()
        {
            CanHandleSessionChangeEvent = true;
            CanHandlePowerEvent = true;
            InitializeComponent();
        }

        protected override void OnStart(string[] args)
        {
            Logger.Info("Service started");
            base.OnStart(args);
        }

        protected override void OnContinue()
        {
            Logger.Info("OnContinue");
            base.OnContinue();
        }

        protected override void OnPause()
        {
            Logger.Info("OnPause");
            base.OnPause();
        }

        protected override bool OnPowerEvent(PowerBroadcastStatus powerStatus)
        {
            Logger.Info("OnPowerEvent : " + powerStatus);
            return base.OnPowerEvent(powerStatus);
        }

        protected override void OnSessionChange(SessionChangeDescription changeDescription)
        {
            Logger.Info("OnSessionChange : " + changeDescription.Reason + " : " + changeDescription.SessionId);
            var user = System.Security.Principal.WindowsIdentity.GetCurrent();
            Logger.Info("OnSessionChange WindowsIdentity.GetCurrent() - : " + (user != null ? user.Name : "[null]"));
            Logger.Info("OnSessionChange Environment.UserName - : " + Environment.UserName);
            base.OnSessionChange(changeDescription);
        }

        protected override void OnShutdown()
        {
            Logger.Info("OnShutdown");
            base.OnShutdown();
        }

        protected override void OnStop()
        {
            Logger.Info("Service stopped");
        }
    }
}

Unistall.bat

@ECHO OFF

REM Using the following directory is for .NET 
set DOTNETFX4=%SystemRoot%\Microsoft.NET\Framework\v4.0.30319
set PATH=%PATH%;%DOTNETFX4%

echo Uninstalling UserLoggedOnService...
echo ---------------------------------------------------
InstallUtil /u UserLoggedOnService.exe
echo ---------------------------------------------------
echo Done.

WindowsServiceInstaller.cs

using System.ComponentModel;
using System.Configuration.Install;
using System.ServiceProcess;

namespace UserLoggedOnService
{
    //http://www.codeproject.com/Articles/14353/Creating-a-Basic-Windows-Service-in-C
    [RunInstaller(true)]
    public class WindowsServiceInstaller : Installer
    {
        /// <summary>
        /// Public Constructor for WindowsServiceInstaller.
        /// - Put all of your Initialization code here.
        /// </summary>
        public WindowsServiceInstaller()
        {
            var serviceProcessInstaller = new ServiceProcessInstaller();
            var serviceInstaller = new ServiceInstaller();

            //# Service Account Information
            serviceProcessInstaller.Account = ServiceAccount.LocalSystem;
            serviceProcessInstaller.Username = null;
            serviceProcessInstaller.Password = null;

            //# Service Information
            serviceInstaller.DisplayName = "UserLoggedOnService";
            serviceInstaller.StartType = ServiceStartMode.Automatic;
            
            //# This must be identical to the WindowsService.ServiceBase name
            //# set in the constructor of WindowsService.cs
            serviceInstaller.ServiceName = "UserLoggedOnService";

            this.Installers.Add(serviceProcessInstaller);
            this.Installers.Add(serviceInstaller);
        }
    }
}