The snag is that it's written in Java, so you'll need the Java Runtime Environment (v1.4.2 or later) to run it.
The program is here:
http://www.gci-net.com/users/k/knot/misc/pakrat.zip
(it's about 58 kb). It has a readme explaining how it works, etc.
The JRE can be downloaded from here:
http://java.sun.com/j2se/1.4.2/download.html
(It's the J2SE JRE link, not the SDK one above it.) Depending on how you download it, it could be up to 15 Mb

Anyway, I'd appreciate it if anyone could test it and see how it works for them. I'm particularly interested if someone who's doing custom model work could try embedding models, since I haven't been able to test that.
Thanks,
Rof.




