Update Program.cs (#9988)

aspnetcore/host-and-deploy/windows-service/samples/2.x/AspNetCoreService/Program.cs

@@ -15,16 +15,17 @@ namespace SampleApp
         public static void Main(string[] args)
         {
             var isService = !(Debugger.IsAttached || args.Contains("--console"));
-            var builder = CreateWebHostBuilder(
-                args.Where(arg => arg != "--console").ToArray());
-
+            
             if (isService)
             {
                 var pathToExe = Process.GetCurrentProcess().MainModule.FileName;
                 var pathToContentRoot = Path.GetDirectoryName(pathToExe);
-                builder.UseContentRoot(pathToContentRoot);
+                Directory.SetCurrentDirectory(pathToContentRoot);
             }
 
+            var builder = CreateWebHostBuilder(
+                args.Where(arg => arg != "--console").ToArray());
+
             var host = builder.Build();
 
             if (isService)