Userinit autolaunch C# Windows 10

Question

I tried this code to add my program to \HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon Userinit autolaunch in C# Windows 10. This is my code:

using Microsoft.Win32;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace TempCode
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            AddToRegedit();
        }
        void AddToRegedit()
        {
            string programPath = @"C:\Users\XPS\Videos\TestApp.exe";
            RegistryKey key = Registry.LocalMachine.OpenSubKey(@"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon", true);
            string newValue = @"C:\WINDOWS\system32\userinit.exe," + programPath + ",";
            key.SetValue("Userinit", newValue, RegistryValueKind.String);
            key.Close();

            Console.WriteLine("Program added!");
        }
    }
}

I launched it with debug with admin privileges but nothing changed at all. If you guys know what's going on please help me!

I tried : Restarting my OS, Launching program without debug, and even asking ChatGPT, but nothing changed.

Also If in cmd i write REG QUERY HKLM\Software\Microsoft\Windows NT\ it says Error: Invalid syntax. Enter "REG QUERY /?" for usage help. Maybe that's because of space?

Answer 1

I fixed the problem myself here's the code:

void RegeditValueChange()
{
    ProcessStartInfo processInfo = new ProcessStartInfo()
    {
        FileName = "cmd",
        Arguments = "/k REG ADD \"HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon\" /v Userinit /t REG_SZ /d C:\\Path\\To\\Your\\File.exe /reg:64 /f"
        //Turn this 4 comments to execute cmd without window
        //UseShellExecute = false,
        //RedirectStandardOutput = true,
        //RedirectStandardError = true,
        //CreateNoWindow = true

    };
    using (Process process = Process.Start(processInfo))
    {
        process.WaitForExit();
        // Uncomment this for logging (if you execute without cmd window)
        /*string output = process.StandardOutput.ReadToEnd();
        string error = process.StandardError.ReadToEnd();


        if (!string.IsNullOrWhiteSpace(output))
        {
            Console.WriteLine("Output: " + output);
        }

        if (!string.IsNullOrWhiteSpace(error))
        {
            Console.WriteLine("Error: " + error);
        }*/
    }

}

So if you use 32 bit system just remove /reg:64. Also I don't recomend you to have spaces in the path to your program but, if you have, try adding "" at the beggining and at the end of your path. /f makes it not to ask for replacement