How to create C# remote desktop application

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;
using MSTSCLib;

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

        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
            

            axMsTscAxNotSafeForScripting1.Server = "test123";
            axMsTscAxNotSafeForScripting1.UserName = "administrator";

                   

            IMsTscNonScriptable secured = (IMsTscNonScriptable)axMsTscAxNotSafeForScripting1.GetOcx();
            secured.ClearTextPassword = "admin@123";

            axMsTscAxNotSafeForScripting1.Connect();

            }
            catch (Exception Ex)
            {
                MessageBox.Show("Error Connecting");
            }
        }
    }
}