Get DNS server from Registry : Registry Network « Windows « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. Windows
3. Registry Network

using System;
using Microsoft.Win32;

class MainClass
{
   public static void Main()
   {
      RegistryKey start = Registry.LocalMachine;
      string DNSservers = @"SYSTEM\CurrentControlSet\Services\Tcpip\Parameters";

      RegistryKey DNSserverKey = start.OpenSubKey(DNSservers);
      if (DNSserverKey == null)
      {
         Console.WriteLine("Unable to open DNS servers key");
         return;
      }
  
      string serverlist = (string)DNSserverKey.GetValue("NameServer");

      Console.WriteLine("DNS Servers: {0}", serverlist);
      DNSserverKey.Close();
      start.Close();

   }
}