console_log4graylog/serviceInstaller/ProjectInstaller.cs

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

namespace serviceInstaller
{
    [RunInstaller(true)]
    public class ProjectInstaller : Installer
    {
        private ServiceProcessInstaller processInstaller;
        private ServiceInstaller serviceInstaller;

        public ProjectInstaller()
        {
            processInstaller = new ServiceProcessInstaller
            {
                Account = ServiceAccount.LocalSystem
            };

            serviceInstaller = new ServiceInstaller
            {
                ServiceName = "Log4GraylogService",
                DisplayName = "Log 4 Graylog Service",
                Description = "Service for monitoring and sending log files to Graylog",
                StartType = ServiceStartMode.Automatic
            };

            Installers.Add(processInstaller);
            Installers.Add(serviceInstaller);
        }

        public override void Install(System.Collections.IDictionary stateSaver)
        {
            base.Install(stateSaver);

            string assemblyPath = Context.Parameters["assemblypath"];
            string exePath = Path.Combine(Path.GetDirectoryName(assemblyPath), "console_log4graylog.exe");

            using (ServiceController sc = new ServiceController(serviceInstaller.ServiceName))
            {
                if (sc.Status == ServiceControllerStatus.Stopped)
                {
                    Process.Start("sc", $"config \"{serviceInstaller.ServiceName}\" binPath= \"{exePath}\"");
                    Process.Start("sc", $"start \"{serviceInstaller.ServiceName}\"");
                }
            }
        }
    }
}