Reinstalling the default directory updates your hosting account's scripts directory with the latest versions of default scripts, including gdform.cgi (Deluxe Linux hosting), gdform.php, and webformmailer.php.
Linux Web Hosting accounts do not have access to the CGI form-mailer. Reinstallation of the scripts directory for these hosting accounts does not include gdform.cgi.
Your default directory is reinstalled within 15 minutes.