My windows service works only if I run from Visual Studio

Question

I have a windows service that run a batch process.When I try to start this services it is blocking in starting.

 public class Heartbeat
    {
        Process _process = new Process();
        public Heartbeat()
        {
            string result = String.Empty;
            string path = @"C:\Data\script.bat";
            ProcessStartInfo startinfo = new ProcessStartInfo();
            startinfo.FileName = path;
            
            _process.StartInfo = startinfo;
            _process.StartInfo.UseShellExecute = false;
            _process.StartInfo.RedirectStandardOutput = true;
            _process.StartInfo.CreateNoWindow = true;
            _process.Start();
            while (!_process.StandardOutput.EndOfStream)
            {
                result = _process.StandardOutput.ReadLine();
                result += "mama";
                File.WriteAllText(@"C:\Data\Demos.txt",result);
            }
        }
        public void Start()
        {
            _process.Start();
        }
        public void Stop()
        {
            _process.Kill();
        }
       
    }
   static void Main(string[] args)
        {
            Directory.SetCurrentDirectory(AppDomain.CurrentDomain.BaseDirectory);
            var exitCode = HostFactory.Run(x=>
            {
                x.Service<Heartbeat>(s => 
                {
                    s.ConstructUsing(heartbeat => new Heartbeat());
                    s.WhenStarted(heartbeat => heartbeat.Start());
                    s.WhenStopped(heartbeat => heartbeat.Stop());
                
                });
                
                x.RunAsLocalSystem();
                x.SetServiceName("HeartbeatService");
                x.SetDisplayName("Heartbeat Service");
                x.SetDescription("This is the sample heartbeat service used in a YouTube demo.");
            });

            int exitCodeValue=(int)Convert.ChangeType(exitCode, exitCode.GetTypeCode());
            Environment.ExitCode = exitCodeValue;
        }

After a while I get this error.I think this is error is when I try to start this process.I also try to fix this with the help of this link: https://ugetfix.com/ask/fix-error-1053-the-service-did-not-respond-to-the-start-or-control-request-in-a-timely-fashion/#:~:text=version%20of%20Reimage%20.-,Error%201053%3A%20The%20service%20did%20not%20respond%20to%20the%20start,not%20being%20able%20to%20launch.

My batch file is :

@echo off 
set message=Hello World 
echo %message%
pause