Look at the JP1 forum on Rob's wed site
[Link: hifi-remote.com]

From there (or from the link in Rob's signature above) you can learn all about JP1.

You can buy or build a cable that lets you program the 9960 directly from a PC, including creating and installing upgrades similar to or better than the one OFA can install for you over the phone.

The free JP1 software can also be used to create .wav file than can be used for upgrades without needing the cable. That way is harder to learn to use than JP1 with the cable, and it can't analyse learned signals (which is the way to figure out what an upgrade ought to be if you can't find that answer over the internet). But it is totaly free, no cable and no phone call to OFA support. And it still gives you more flexibility to customize the upgrade the way you want it than you'd get from OFA. (The phone call to OFA only costs what your phone company charges. OFA doesn't charge for support).