Although the method I have devised to search for duplicates, does indeed remove all duplicates. It is slow and is probably not the best way to do it.

No one (including you) will ever know if there is a better way to do it until you show us how you are doing it now. Post something that looks like code and indicates what you are doing.

Is there such a thing as a sort list without duplicates function usable on a windows system?? I'm sure this can be done in UNIX. Thanks again you guys are most skilled in programming balance.

On any unix system, you would do a command line like this:

sort -u file.txt > sorted-uniq-file.txt
[download]

There are at least a few good sources (Cygwin, GNU, ATT Research Labs) where you can get comprehensive kits that port all the basic unix command-line utilities -- not just sort, but also ls, find, cut, paste, grep, awk, tar ... and most important, the bash shell -- for use on any MS-Windows system (including source code and gcc compiler, if you're into that sort of thing).