"Director" is the HP's "Universal" product for controlling all of their
printers / scanners / All-in-One products.
From my perspective, the problem with director is that for professional
level scanning with higher-end scanners, director is pure junk compared
to the previous scanning software that came with high-end scanners (HP
PrecisionScan Pro).
You might be able to use the latest version of Director with any older
HP product; you might need to first install a low-level driver, which HP
has for most products (may or may not be Vista compatible).