自动解压缩文件

        /// <summary>
        /// 解压缩文件
        /// </summary>
        /// <param name="stylepath">压缩文件路径</param>
        private void unzipFile(string stylepath)
        {
            String Rar;
            RegistryKey Reg;
            Object Obj;
            String Info;
            ProcessStartInfo StartInfo;
            Process Process;
            try
            {
                Reg = Registry.ClassesRoot.OpenSubKey(@"Applications\WinRar.exe\Shell\Open\Command");
                Obj = Reg.GetValue("");
                Rar = Obj.ToString();
                Reg.Close();
                Rar = Rar.Substring(1, Rar.Length - 7);
                string targetdir = Path.GetDirectoryName(stylepath) + "\\" + Path.GetFileNameWithoutExtension(stylepath);
                if (!Directory.Exists(targetdir))
                {
                    Directory.CreateDirectory(targetdir);
                }
                Info = " X " + stylepath + " " + targetdir;
                StartInfo = new ProcessStartInfo();
                StartInfo.FileName = Rar;
                StartInfo.Arguments = Info;
                StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
                Process = new Process();
                Process.StartInfo = StartInfo;
                Process.Start();
                //判断解压缩文件的进程是否结束
                while (true)
                {
                    if (Process.HasExited == true)
                        break;
                    else
                        System.Threading.Thread.Sleep(1000);
                }
            }
            catch (Exception ex)
            {
                this.ltlinformation.Text = "文件上传失败：" + ex.ToString();
            }
            finally
            {
                GC.Collect();
                GC.Collect(1);
            }
        }