When you "picked" the DESCRIBE image, or any of the other images, the
 image file name was saved to PICK.TXT.  NAMEONLY.EXE stripped the .GIF
 extension and then provided the remaining word to DESCRIBE.EXE.
 DESCRIBE.EXE then searched the file MAIN.TXT for a match to the word.
 When a match is found, the paragraph, up to 12 lines, containing the word
 can be displayed, or saved to another file, in this case called PSRUN.BAT.
 The batch file PSRUN.BAT is then told to run.  Essentially, the selection of
 an image has been used to load and run a program or can simply query a text
 file.  You are reading an ASCII text file called DEMO4.TXT.

 Much of this demo is based on the following batch file setup.
   @echo off
   cls
   :again
   psdemo -n2 -d12 -pPICK.TXT -r @fotolist.txt
   if not exist pick.txt goto end
   nameonly pick.txt | describe main.txt psrun.bat
   CALL PSRUN
   CLS
   goto :again
   :END
   PAUSE