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using System;

using ICSharpCode.SharpZipLib.Zip;

class Program

{

    static void Main()

    {

        string sourceFolder = @"C:\Path\To\Your\Folder";

        string zipFile = @"C:\Path\To\Your\Archive.zip";

        ZipDirectory(sourceFolder, zipFile);

        Console.WriteLine("Compression completed.");

        string extractFolder = @"C:\Path\To\Your\Extracted";

        UnzipFile(zipFile, extractFolder);

        Console.WriteLine("Extraction completed.");

    }

    static void ZipDirectory(string sourceFolder, string zipFile)

    {

        using (ZipOutputStream zipStream = new ZipOutputStream(System.IO.File.create(zipFile)))

        {

            zipStream.SetLevel(9); // 0 - store only to 9 - means best compression

            ZipFolder(sourceFolder, sourceFolder, zipStream);

            zipStream.Finish();

            zipStream.Close();

        }

    }

    static void ZipFolder(string rootFolder, string currentFolder, ZipOutputStream zipStream)

    {

        string[] files = System.IO.Directory.GetFiles(currentFolder);

        foreach (string file in files)

        {

            ZipFile(zipStream, currentFolder, file);

        }

        string[] subFolders = System.IO.Directory.GetDirectories(currentFolder);

        foreach (string folder in subFolders)

        {

            ZipFolder(rootFolder, folder, zipStream);

        }

    }

    static void ZipFile(ZipOutputStream zipStream, string rootFolder, string filePath)

    {

        byte[] buffer = new byte[4096];

        string relativePath = filePath.Substring(rootFolder.Length + 1);

        ZipEntry entry = new ZipEntry(relativePath);

        zipStream.PutNextEntry(entry);

        using (System.IO.FileStream fs = System.IO.File.OpenRead(filePath))

        {

            int sourceBytes;

            do

            {

                sourceBytes = fs.Read(buffer, 0, buffer.Length);

                zipStream.Write(buffer, 0, sourceBytes);

            } while (sourceBytes > 0);

        }

    }

    static void UnzipFile(string zipFile, string extractFolder)

    {

        using (ZipInputStream zipStream = new ZipInputStream(System.IO.File.OpenRead(zipFile)))

        {

            ZipEntry entry;

            while ((entry = zipStream.GetNextEntry()) != null)

            {

                string entryName = entry.Name;

                string fullZipToPath = System.IO.Path.Combine(extractFolder, entryName);

                string directoryName = System.IO.Path.GetDirectoryName(fullZipToPath);

                if (directoryName.Length > 0)

                {

                    System.IO.Directory.createDirectory(directoryName);

                }

                if (entry.IsFile)

                {

                    byte[] buffer = new byte[4096];

                    using (System.IO.FileStream streamWriter = System.IO.File.create(fullZipToPath))

                    {

                        int sourceBytes;

                        do

                        {

                            sourceBytes = zipStream.Read(buffer, 0, buffer.Length);

                            streamWriter.Write(buffer, 0, sourceBytes);

                        } while (sourceBytes > 0);

                    }

                }

            }

        }

    }

}

using System;

using Ionic.Zip;

class Program

{

    static void Main()

    {

        string sourceFolder = @"C:\Path\To\Your\Folder";

        string zipFile = @"C:\Path\To\Your\Archive.zip";

        ZipDirectory(sourceFolder, zipFile);

        Console.WriteLine("Compression completed.");

        string extractFolder = @"C:\Path\To\Your\Extracted";

        UnzipFile(zipFile, extractFolder);

        Console.WriteLine("Extraction completed.");

    }

    static void ZipDirectory(string sourceFolder, string zipFile)

    {

        using (ZipFile zip = new ZipFile())

        {

            zip.AddDirectory(sourceFolder);

            zip.Save(zipFile);

        }

    }

    static void UnzipFile(string zipFile, string extractFolder)

    {

        using (ZipFile zip = ZipFile.Read(zipFile))

        {

            zip.ExtractAll(extractFolder, ExtractExistingFileAction.OverwriteSilently);

        }

    }

}