I think you mean Personal Embroidery Professional software. I'm curious when you say that PEP won't do all designs. Is there a theme or similarity between the designs that it won't do?
DRK was not designed to need PEP to run, or anything like that. It's a stand-alone program. Density Repair Kit can take a design (reads most embroidery formats), and clean it up to run more smoothly. Then you save the new design in the format you'd like to use (writes most embroidery formats I've ever needed, except ART), for use in your machine.
Donald M.
Does this play well with PEP? Even it won't do all designs!