bring up a dos prompt (Choose Start, Programs (All Programs in XP), Accessories, Command Prompt to open such a window) and do
dir /b
in the folder you want a listing from.
(you use
cd C:\Documents and Settings\Administrator
or whatever folder you want instead of "C:\Documents and Settings\Administrator" to change to to change the current dos folder - but you probably know this!)
you can do
dir /b >foo.txt
to put the directory listing into a file if you want
dir /? for other things that dir can do (like 8.3 filenames)
Hope I understood what you were asking and apologies if you already knew/ have tried this