Associate a backend with a printer?

[Aaron Sher]

I'm working on a Mac OS X driver for a network printer, which is currently discovered via Bonjour. I have a need to create a custom backend, and I can't figure out how to get it associated with my printer. Currently, it's discovered via dnssd, and the DNS lookup is resolving the dnssd:// URI to a socket:// URI; ideally, I'd like to just alter this lookup so that it returns a URI with a different scheme, but I don't know how.

Can anyone offer any suggestions?

Thanks,
    Aaron