Vista - XPS Print Server (when no Vista x64 printer driver is available)

Hi,

I have a Vista Ultimate 64-bit machine connected to my network. My LAN
printer is an HP Color LaserJet 2600n. That LaserJet model uses host-based
printing such that the exact printer driver is essential, and unfortunately,
there's no Vista x64 support for that printer.

What I would like to do is to use a print server running Windows XP that
does have the correct LaserJet driver installed. But I still need some way
for the Vista x64 machine to send jobs to the print server. Ideally, I want
to be able to print to XPS print path on the remote print server and let it
convert to the printer-specific format, using something like shared printer
feature. Is this possible? Does such a service exist? (generic remote XPS to
GDI conversion)

Right now I manually do this by using the print to XPS feature in Vista and
opening the XPS file in the Windows XP machine's Internet Explorer and
printing from there, which works, but is extremely tedious. If there's any
way to automate the printing of XPS files in Windows XP, that might be a
reasonable workaround as well.

Thanks,
John