using System.IO;
using Xceed.Zip.ReaderWriter;
//The target Zip archive
using (FileStream fileStream1 = new FileStream(@"d:\testOutput\test.zip",
  FileMode.Create, FileAccess.Write))
{
  //Create the ZipWriter object around the stream.
  Xceed.Zip.ReaderWriter.ZipWriter zipWriter1 =
    new Xceed.Zip.ReaderWriter.ZipWriter(fileStream1);
  //The source directory.
  DirectoryInfo directoryInfo = new DirectoryInfo(@"d:\test\");
  if (directoryInfo.Exists)
  {
    //Get files in the current directory and all subdirectories.
    FileInfo[] files = directoryInfo.GetFiles("*.*",
      SearchOption.AllDirectories);
    foreach (FileInfo file in files)
    {
      //Create ZipItemLocalHeader for current item and write to archive.
      ZipItemLocalHeader zipItemLocalHeader1 = new ZipItemLocalHeader
        (file.Name);
      zipWriter1.WriteItemLocalHeader(zipItemLocalHeader1);
      byte[] buffer = new byte[1024];
      int read = 0;
      using (FileStream fs = file.OpenRead())
      {
        //Read the current item's data
        while ((read = fs.Read(buffer, 0, buffer.Length)) != 0)
        {
          //Write the current item's data to the Zip archive
          zipWriter1.WriteItemData(buffer, 0, read);
          Console.WriteLine("Writing {0}. {1} bytes written.",
            zipItemLocalHeader1.FileName, read);
        }
      }
    }
    //Close the Zip archive. Writes the archive's central header.
    zipWriter1.CloseZipFile();
    Console.WriteLine("Zip archive created.");
  }
}