My zipper

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using ICSharpCode.SharpZipLib.Zip;
using System.IO;
using System.Collections;

/**//// <summary>
/// Summary description for Ziper
/// </summary>
public class Ziper
{
    "Zip"#region "Zip"
    public static void Zip(string SourceFolder, string DestinationFile)
    {
        Zip(SourceFolder, DestinationFile, 1024);
    }
    #endregion

    "Zip"#region "Zip"
    public static void Zip(string SourceFolder, string DestinationFile, int BufferSize)
    {
        try
        {
            ArrayList files = GenerateFileList(SourceFolder);
            if (files.Count != 0)
            {
                FileStream fileStreamOut = new FileStream(DestinationFile, FileMode.Create, FileAccess.Write);
                ZipOutputStream zipOutStream = new ZipOutputStream(fileStreamOut);
                foreach (string filePath in files)
                {
                    FileStream fileStreamIn = new FileStream(filePath, FileMode.Open, FileAccess.Read);
                    byte[] buffer = new byte[BufferSize];
                    string newPath = filePath.Substring(SourceFolder.Length + 1);
                    ZipEntry entry = new ZipEntry(newPath);
                    zipOutStream.PutNextEntry(entry);
                    int size;
                    do
                    {
                        size = fileStreamIn.Read(buffer, 0, buffer.Length);
                        zipOutStream.Write(buffer, 0, size);
                    }
                    while (size > 0);
                    fileStreamIn.Close();
                }
                zipOutStream.Close();
                fileStreamOut.Close();
            }
        }
        catch
        {
            throw new Exception("Error, please make sure that your asp.net account has the rights to read and write those files");
        }
    }
    #endregion

    "UnZip"#region "UnZip"
    public static void UnZip(string SourceFile, string DestinationFolder)
    {
        UnZip(SourceFile, DestinationFolder, 1024);
    }
    #endregion

    "UnZip"#region "UnZip"
    public static void UnZip(string SourceFile, string DestinationFolder, int BufferSize)
    {
        try
        {
            if (!Directory.Exists(DestinationFolder))
            {
                Directory.CreateDirectory(DestinationFolder);
            }
            FileStream fileStreamIn = new FileStream(SourceFile, FileMode.Open, FileAccess.Read);
            ZipInputStream zipInStream = new ZipInputStream(fileStreamIn);
            ZipEntry entry = zipInStream.GetNextEntry();
            while (entry != null)
            {
                if (entry.IsDirectory)
                {
                    if (!Directory.Exists(DestinationFolder + "\\" + entry.Name))
                    {
                        Directory.CreateDirectory(DestinationFolder + "\\" + entry.Name);
                    }
                }
                else
                {
                    FileStream fileStreamOut = new FileStream(DestinationFolder + "\\" + entry.Name, FileMode.Create, FileAccess.Write);
                    int size;
                    byte[] buffer = new byte[BufferSize];
                    do
                    {
                        size = zipInStream.Read(buffer, 0, buffer.Length);
                        fileStreamOut.Write(buffer, 0, size);
                    }
                    while (size > 0);
                    fileStreamOut.Close();
                }
                entry = zipInStream.GetNextEntry();
            }
            zipInStream.Close();
            fileStreamIn.Close();
        }
        catch
        {
            throw new Exception("Error, please make sure that your asp.net account has the rights to read and write those files");
        }
    }
    #endregion

    "GenerateFileList"#region "GenerateFileList"
    private static ArrayList GenerateFileList(string Folder)
    {
        ArrayList files = new ArrayList();
        foreach (string file in Directory.GetFiles(Folder))
        {
            files.Add(file);
        }
        foreach (string directions in Directory.GetDirectories(Folder))
        {
            foreach (string file in GenerateFileList(directions))
            {
                files.Add(file);
            }
        }
        return files;
    }
    #endregion
}