Getting DNS TXT Record using C#

In this example we will get the DNS TXT Record for a given hostname using C# to run nslookup at the command line.

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private static IList<string> GetTxtRecords(string hostname)         {             IList<string> txtRecords = new List<string>();             string output;             string pattern = string.Format(@"{0}\s*text =\s*""([\w\-\=]*)""", hostname);             var startInfo = new ProcessStartInfo("nslookup");             startInfo.Arguments = string.Format("-type=TXT {0}", hostname);             startInfo.RedirectStandardOutput = true;             startInfo.UseShellExecute = false;             startInfo.WindowStyle = ProcessWindowStyle.Hidden;             using (var cmd = Process.Start(startInfo))             {                 output = cmd.StandardOutput.ReadToEnd();             }                         MatchCollection matches = Regex.Matches(output, pattern, RegexOptions.IgnoreCase);             foreach (Match match in matches)             {                 if (match.Success)                     txtRecords.Add(match.Groups[1].Value);             }             return txtRecords;         } </string></string></string>