acl stop_files url_regex -i ftp \.exe \.mp3 \.vqf \.tar\.gz \.gz \.rpm \.zip
                           \.rar \.avi \.mpeg \.mpe \.mpg \.qt \.ram \.rm \.iso \.raw \.wav \.mov
acl stop_files rep_mime_type application audio video
http_access deny stop_files