C# รบกวนช่วยอธิบาย Code Remote Desktop นี้ให้หน่อยครับ

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

        private void btnConnect_Click(object sender, EventArgs e)
        {
            rdpCtl.Server = "10.101.98.17";
            rdpCtl.UserName = "pb";
            //setpass
            MSTSCLib.IMsTscNonScriptable mstscScript = (MSTSCLib.IMsTscNonScriptable)rdpCtl.GetOcx();
            mstscScript.ClearTextPassword = "theeza17";
            rdpCtl.Connect();
        }
    }
}