C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net;

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

private void Form1_Load(object sender, EventArgs e)
{
label1.Text = "Host Computer: " + Dns.GetHostName();
foreach (IPAddress address in Dns.GetHostAddresses(Dns.GetHostName()))
{
label2.Text = "IP Address: " + address;
}
}
}
}