How to start a process as a child of VS?

[sharpninja]

I'm developing an extension that uses an ASP.Net Core webserver in the background. I need it to be terminated when VS closes, even if the VS process is terminated. I know that VS spawns child processes to do background work that function this way. How do I launch my webserver as a child of VS?

[reduckted]

https://stackoverflow.com/questions/3342941/kill-child-process-when-parent-process-is-killed#4657392

[workgroupengineering]

I do like this

Main Process

in your case VS

var id = Process.GetCurrentProcess().Id;
var si = new ProcessStartInfo("ChildProcess.exe", id.ToString())
{
    UseShellExecute = false,
    CreateNoWindow = false,
};
var c = Process.Start(si);
Console.WriteLine($"Child {c?.Id ?? 0}");
Console.WriteLine("Press key to exit");
Console.ReadKey();

Child

your web server

using System.Diagnostics;

Console.WriteLine("Child Process, World!");
Console.WriteLine($"Parent process {args[0]}");


await Task.Factory.StartNew(state =>
{
    int.TryParse(args[0], out var id);
    var p = Process.GetProcessById(id);
    p.WaitForExit();
}, args[0]);

Console.WriteLine("Parent process exit");