"Paul" wrote in message news There is no UNIQUE option in MSDOS sort.
http://www.vfrazee.com/ms-dos/6.22/help/sort.htm


Paul I Use IrfanView

Click on the File Menu, select Slideshow.
A dialog allows you to select a directory
from which the files will be

Click the Sort button to choose a sort order by name, date, size or
extension.
Files may be sorted in ascending or descending order. To remove a sort,
click the no Sort option button.

Click Save filenames as TXT
and a dialog like Save As appears.
Give your slideshow a name
and click Save to have it stored
on the disk drive.