Zipping a text file from predefined location in visual studio 2008, c# 3.5

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Linq;
using System.ServiceProcess;
using System.Text;
using System.IO;
using ICSharpCode.SharpZipLib.Zip;

namespace createzip
{
    public partial class createzip : ServiceBase
    {
        public createzip()
        {
            InitializeComponent();
        }

protected override void OnStart(string[] args)
        {

            if (args.Length < 2)
            {

                //DirectoryInfo d = new DirectoryInfo("E:\\zipped files\\R_23122013");
                /* I guess my mistake is lying in below 2 lines */
                ZipFile z = new ZipFile("E:\\zipped files\\R_23122013");
                Console.WriteLine(z);//"E:\\R_23122013"
                return;
            }
            if (!Directory.Exists(args[0]))
            {
                Console.WriteLine("cannot find directory '(0)'", args[0]);
                return;
            }
            try
            {
                string[] filenames = Directory.GetFiles(args[0]);
                using (ZipOutputStream s = new ZipOutputStream(File.Create(args[1])))
                {
                    s.SetLevel(9);
                    byte[] buffer = new byte[4096];
                    foreach (string file in filenames)
                    {
                        ZipEntry entry = new ZipEntry(Path.GetFileName(file));
                        entry.DateTime = DateTime.Now;
                        s.PutNextEntry(entry);
                        using (FileStream fs = File.OpenRead(file))
                        {
                            int sourcebytes;
                            do
                            {
                                sourcebytes = fs.Read(buffer, 0, buffer.Length);
                                s.Write(buffer, 0, sourcebytes);
                            }
                            while (sourcebytes > 0);
                        }
                    }
                    s.Finish();
                    s.Close();
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine("Exception during processing {0}", ex);
            }


        }


        protected override void OnStop()
        {
        }
    }
}