I have finally gotten the Windows Features setup to behave and now I have LPD services installed. I also managed to get the emulated LPD printer to work - sending documents to it simply relays them to the router, which then relays them to the Ghostscript printer. Everything on the Vista side of things is fine.

Mac OS, on the other hand...

I cannot get either Macintosh to work with the LPR service. Both Macs acknowledge that there is a computer at the Vista machine's IP address (which is static), and both say that a printer is detected when the Verify button is selected (in the Desktop Pinter Setup). However, when it comes to actually printing, the iMac will simply crash with a non responsive desktop, after sending about 2/3 of the document, according to the Print Queue. The LC meanwhile actually spools the entire document, attempts to connect to the LPD, and then reports an error that the selected printer was no found in the queue.

I have checked EVERYTHING. The IP address is correct, the LPD printer is shared, all of the Macs have the correct share/queue name. And every time it either crashes or that same error occurs.

Please help. I'm beginning to lose my patience with this.