LSLib.LS.Packager.UncompressPackage C# (CSharp) Method

        public void UncompressPackage(string packagePath, string outputPath)
        {
            if (outputPath.Length > 0 && outputPath.Last() != '/' && outputPath.Last() != '\\')
                outputPath += "/";

            this.progressUpdate("Reading package headers ...", 0, 1);
            var reader = new PackageReader(packagePath);
            var package = reader.Read();

            long totalSize = package.Files.Sum(p => (long)p.Size());
            long currentSize = 0;

            foreach (var file in package.Files)
            {
                this.progressUpdate(file.Name, currentSize, totalSize);
                currentSize += file.Size();

                var outPath = outputPath + file.Name;
                var dirName = Path.GetDirectoryName(outPath);
                if (!Directory.Exists(dirName))
                {
                    Directory.CreateDirectory(dirName);
                }

                var inReader = file.MakeReader();
                var outFile = new FileStream(outPath, FileMode.Create, FileAccess.Write);

                if (inReader != null)
                {
                    byte[] buffer = new byte[32768];
                    int read;
                    while ((read = inReader.Read(buffer, 0, buffer.Length)) > 0)
                    {
                        outFile.Write(buffer, 0, read);
                    }

                    inReader.Dispose();
                }

                outFile.Dispose();
            }

            reader.Dispose();
        }

 private void extractPackageBtn_Click(object sender, EventArgs e)
 {
     extractPackageBtn.Enabled = false;
     try
     {
         var packager = new Packager();
         packager.progressUpdate += this.PackageProgressUpdate;
         packager.UncompressPackage(packagePath.Text, extractionPath.Text);
         MessageBox.Show("Package extracted successfully.");
     }
     catch (Exception exc)
     {
         MessageBox.Show("Internal error!\r\n\r\n" + exc.ToString(), "Extraction Failed", MessageBoxButtons.OK, MessageBoxIcon.Error);
     }
     finally
     {
         packageProgressLabel.Text = "";
         packageProgress.Value = 0;
         extractPackageBtn.Enabled = true;
     }
 }