  QuickSpot is a visual file compare and folder compare          
  utility. It compares 2 text-files or folders and highlights    
  the differences found between them. File-differences can be    
  reported in detail, down to each individual byte or            
  character. Lines that are not in synch will be highlighted     
  for quick identification. Differences can be edited, viewed,   
  printed or saved as a file.  

  It's shareware and you can download at http://www.famtech.ca/noframes/quicks.html
 
  Install the program and copy all file to plugin\qs41\files
  If you are registered user, your reg info should be in qs.ini, so dont delete that file

  Take a look at inf file for user name and company name.