using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Diagnostics;
using System.Text.RegularExpressions;

namespace ConsoleApplication3
{
    class Program
    {
        static void Main(string[] args)
        {
            string address = "192.168.1.1";
            StringBuilder netBiosName = new StringBuilder();
            //Create the process object
            Process netName = new Process();

            //set the process command and the arguments
            ProcessStartInfo startInfo = new ProcessStartInfo("nbtstat", "-A " + address.ToString());

            //set UseShellExecute to false and RedirectStandardOutput to true
            startInfo.UseShellExecute = false;
            startInfo.RedirectStandardOutput = true;

            //set the start info for the process
            netName.StartInfo = startInfo;

            //start the process
            netName.Start();

            //create a streamreader to read the output
            StreamReader reader = netName.StandardOutput;

            //create a stringbuilder to hold the data
            StringBuilder[] data = new StringBuilder[255];


            int century = 0;
            //append the standard output to the string builder
            while (!reader.EndOfStream)
            {
                **********NullReferenceException********
                data[century].Append(reader.ReadLine());
                century++;
            }
            century = 0;

            //close the reader, stream writer, buffer and filestream
            reader.Close();

            for (int i = 0; i < data.Length; i++)
            {
                if (data[i].ToString().Contains("<20>"))
                {
                    netBiosName.Append(data[i].ToString());
                }
            }
            Console.WriteLine(netBiosName);
        }
    }
}