using System;

using System.Text.RegularExpressions;

​

public class Program

{

    public static void Main()

    {

        string sourceContents = "AddDocument: https://www.yourCompanyName.com/site/152633/supportFiles.zip\n\tError: Error 1";

        Regex re = new Regex(@"AddDocument: (.*)\s+(Error: .*)", RegexOptions.Multiline);

        MatchCollection mc = re.Matches(sourceContents);

        int mIdx = 0;

​

        foreach (Match m in mc)

        {

            //Removed internal "for loop" to focus on 2 particular matches index 1 and 2.

            //for (int gIdx = 0; gIdx < m.Groups.Count; gIdx++)

            //{

            Console.WriteLine("\"{0}\",\"{1}\"", m.Groups[1].Value.Trim(), m.Groups[2].Value.Trim());

            //}

            mIdx++;

        }   

    }

}