sc.exe create "My Worker Service Core1" binPath="D:\MyWorkerServiceCore1\publish\MyWorkerServiceCore1.exe"

using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;

namespace MyWorkerServiceCore1
{
     public class Worker : BackgroundService
     {
          private readonly ILogger<Worker> _logger;

          public Worker(ILogger<Worker> logger)
          {
               _logger = logger;
          }

          protected override async Task ExecuteAsync(CancellationToken stoppingToken)
          {
               while (!stoppingToken.IsCancellationRequested)
               {
                    _logger.LogInformation("Worker running at: {time}", DateTimeOffset.Now);
                    await Task.Delay(1000, stoppingToken);
               }
          }
     }
}

sc.exe delete "My Worker Service Core1"