HP Design Jet 100 on Vista Home Premium USB

I'm trying to set up an HP Designjet 100 on a Vista Home Premium computer.
This printer has successfully been used with Windows XP and with Windows 7 in the past.

I've tried pretty much everything I can think of and the outcome seems to always be the same:

When a test page is sent to the printer, it shows in the queue briefly and then disappears.  The printer does nothing.

I've removed all installs of the printer; I've purged the registry of this printer; etc.

I have an *.inf file recently downloaded from HP.  Inside it shows the printer name as "Designjet 100plus"

Now, I recall in installing printers in Windows 7 using XP drivers for XP to share that some of the .inf files need to be edited re: the printer name - in order for the .inf file to be recognized by the OS as the "right one".
I wonder if this might be the case here.
Variations on the name in this regard didn't help either but I'm not sure I picked the right name (how?).  I tried "Designjet 100", "Designjet 100plus", "designjet 100", "designjet 100 plus"'; "hpdesignjet ......"