C automatically sets up IE proxy server (over the wall software) code implementation

C# automatically sets IE proxy server code as follows:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Microsoft.Win32;
using System.Diagnostics;
 
namespace IE
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
 
        private void mycheck()// By reading inside the registry "ProxyEnable" The value of the , Determine when the program starts button1.text The value of the .
        {
            RegistryKey mykey = Registry.CurrentUser.OpenSubKey("Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings", true);
            string myget = mykey.GetValue("ProxyEnable").ToString();
            if (myget == "0")// Determines whether the current state is enabled or disabled .
            {
                button1.Text = " closed ";
            }
            else
            {
                button1.Text = " Has been opened ";
            }
        }
 
        private void button1_Click(object sender, EventArgs e)
        {
            RegistryKey mykey = Registry.CurrentUser.OpenSubKey("Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings", true);
 
            if (button1.Text == " Has been opened ")//  Shut down 
            {
                mykey.SetValue("ProxyEnable", 0x0);
                mykey.SetValue("ProxyServer", "");
                button1.Text = " closed ";// Shut down goagent Button not available , Prevent program error .
            }
            else// Open the 
            {
                mykey.SetValue("ProxyEnable", 0x1);
                mykey.SetValue("ProxyServer", "127.0.0.1:8087");
                button1.Text = " Has been opened ";
            }
        }
 
        private void Form1_Load(object sender, EventArgs e)
        {
            mycheck();
            button3.Enabled = false;
        }
 
        private void button2_Click(object sender, EventArgs e)// Open the goagent
        {
            Process.Start("D:\\Program Files\\goagent-goagent-f0fabf7\\local\\goagent.exe");
            button2.Enabled = false;
            button3.Enabled = true;
        }
 
        private void button3_Click(object sender, EventArgs e)// Shut down goagent
        {
            Process.GetProcessesByName("goagent")[0].Kill();
            Process.GetProcessesByName("python27")[0].Kill();
            button2.Enabled = true;
            button3.Enabled = false;
        }
    }
}