I have a simple window application I am starting and I was given another file I would like to bring into the new project. How do I bring them both together to work as one file? 

**New Project**

```
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 WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {

        }
    }
}

```

**Other**

```
using System;
using System.Text;
using System.IO;
using System.Net;

namespace CaptchaClient
{

    public static class SampleUse
    {

        public static void SampleSolve()
        {

        }
    }
    public class CaptchaSolver
    {

    }
    public enum ResponseState
    {

    }
}

```