program.cs

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.IO.Compression;
using System.Linq;
using System.Text;
using System.Xml;

namespace ConsoleApplication1
{
    internal class Program
    {
        public static void Main(string[] args)
        {
            using (var eventLog = new EventLog("Lenovo-Customer Feedback"))
            {
                foreach (EventLogEntry eventLogEntry in eventLog.Entries)
                {
                    try
                    {
                        var text = Decompress(eventLogEntry.Data);
                        if (!string.IsNullOrEmpty(text))
                        {
                            var dictionary = ToDictionary(text);
                            Console.WriteLine("{0}:{2}:{1}", eventLogEntry.TimeGenerated, text, dictionary["serverUrl"]);
                        }
                    }
                    catch (Exception)
                    {
                        Console.WriteLine("Exception occcurred while processing event log record with timestamp {0}.  Record will be skipped.", eventLogEntry.TimeGenerated);
                    }
                }
            }
        }

        private static string Decompress(byte[] data)
        {
            if (data == null)
            {
                throw new ArgumentNullException("data");
            }

            string result;
            using (var memoryStream = new MemoryStream(data, false))
            {
                using (var gzipStream = new GZipStream(memoryStream, CompressionMode.Decompress, false))
                {
                    using (var streamReader = new StreamReader(gzipStream, Encoding.UTF8))
                    {
                        result = streamReader.ReadToEnd();
                        streamReader.Close();
                    }

                    gzipStream.Close();
                }
            }

            return result;
        }

        private static Dictionary<string, string> ToDictionary(string xml)
        {
            if (string.IsNullOrEmpty(xml))
            {
                throw new ArgumentNullException("xml", "Value cannot be null or an empty string.");
            }

            var dictionary = new Dictionary<string, string>();
            var xmlDocument = new XmlDocument();
            xmlDocument.LoadXml(xml);
            if (xmlDocument.DocumentElement != null && xmlDocument.DocumentElement.ChildNodes != null)
            {
                foreach (XmlNode xmlNode in xmlDocument.DocumentElement.ChildNodes)
                {
                    if (!string.IsNullOrEmpty(xmlNode.Name) && !string.IsNullOrEmpty(xmlNode.InnerText))
                    {
                        dictionary.Add(xmlNode.Name, xmlNode.InnerText);
                    }
                }
            }

            return dictionary;
        }
    }
}