UnRAR files present in a directory

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C#

this is my UnRAR a file code,its not working when there is space in the path(eg:D:\UnRAR File\Files).if there is no space(eg:D:\UnRARFile\Files) i can able to unrar.

so someone plz help me...

string the_Info;

            ProcessStartInfo the_StartInfo;
            Process the_Process;
            try
            {
                string path = @"" + fstrpath + "";
                string RarFile_dir = "";

                RarFile_dir = @"" + fstrpath + "\\" + fstrRarFileName + "";

                // if unRAR files exist delete it
                if (Directory.Exists(RarFile_dir) == true)
                    Directory.Delete(RarFile_dir, true);

                the_Info = " X " + path + "\\" + fstrRarFileName + ".rar " + " " + path;
                the_StartInfo = new ProcessStartInfo();

                the_StartInfo.FileName = path + "\\winRAR.exe";
                the_StartInfo.Arguments = the_Info;
                the_StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
                the_StartInfo.WorkingDirectory = path;
                the_Process = new Process();
                the_Process.StartInfo = the_StartInfo;
                the_Process.Start();
                the_Process.WaitForExit();
                the_Process.Close();
                RarFile_dir = @"" + path + "";
            }

            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }