I downloaded your example file and it took me about 5 minutes to get it working. There are a couple of errors in your code - Procedures that arn;t declared properly as well as redeclarations of other procedures.

I'd suggest putting in a read me file on how to get the program working as well. I't took me a while to realize that the results were only put into a text file.

What about creating a demo that allows me to enter a lot of integers into a listbox or memo that can then be sorted when I press a button.