I've spent additional time digging through the archives.

Moderator Jeff stated in one post "any JetDirect card will work with any computer that can talk to it with the common networking protocols (e.g. TCP/IP, IPX/SPX, Appletalk, etc.) "

I would interpret this to mean I do not need a special Vista 64 driver for the JetDirect card (or XP driver for that matter). I don't understand why HP has various OS driver downloads for each model JetDirect card...

I've tried the Parallel to USB cord but Vista 64 does not recognize the printer.

I'm really searching for an OS independent answer for networking my HP 4 and the JetDirect route seems to be the best solution.

Barry