The "Kelly Payne Collection" is not a widely recognized commercial product, but rather a term often associated with a specific set of portable, freeware software utilities

A request for help writing a paper

about the Kelly Payne collection — but without more context (field: literature, education, social science?), I can’t accurately help.

If you're looking for free, legal, portable academic papers

in general:

Some popular applications in the Kelly Payne Collection