using System;
using System.Diagnostics;

namespace LoggingTest
{
    class Program
    {
        static void Main(string[] args)
        {
            string sSource;
            string sLog;
            string sEvent;

            sSource = "dotNET Sample App";
            sLog = "Application";
            sEvent = "Sample Event,What's the fuck!";

            if (!EventLog.SourceExists(sSource))
                EventLog.CreateEventSource(sSource, sLog);

            EventLog.WriteEntry(sSource, sEvent);
            EventLog.WriteEntry(sSource, sEvent,
                EventLogEntryType.Warning, 234);
          // and then we can see log in Windows Event Viewer
        }
    }
}