Unrar C#

            string the_rar;
            RegistryKey the_Reg;
            object the_Obj;
            string the_Info;
            ProcessStartInfo the_StartInfo;
            Process the_Process;
            try
            {
                the_Reg = Registry.ClassesRoot.OpenSubKey(@Applications\WinRAR.exe\Shell\Open\Command);
                the_Obj = the_Reg.GetValue("");
                the_rar = the_Obj.ToString();
                the_Reg.Close();
                the_rar = the_rar.Substring(1, the_rar.Length - 7);

                //Vad rar filen heter (test.rar) och vart den ska packas upp (C:\test\)
                the_Info = " X " + " test.rar " + @C:\test";
                the_StartInfo = new ProcessStartInfo();
                the_StartInfo.FileName = the_rar;
                the_StartInfo.Arguments = the_Info;
                the_StartInfo.WindowStyle = ProcessWindowStyle.Hidden;

                //Vart rar filen ligger (C:\)
                the_StartInfo.WorkingDirectory = @C:\test\";
                the_Process = new Process();
                the_Process.StartInfo = the_StartInfo;
                the_Process.Start();
                label2.Text = "unrar lyckat";

            }
            catch
            {
                label2.Text = "unrar misslyckat";
            }

the_Reg = Registry.ClassesRoot.OpenSubKey(@WinRAR\Shell\Open\Command);