Just some info...  

I was just about to dump my Canon S530D and HP Scanjet 4670, I'd been unable to find drivers that would work properly with my Windows 7 64bit Untimate. Both vendor or auto update from MS were worthless, as a last ditch effort when choosing the update driver option I clicked on let me choose compatable drivers, a window appeared asking if I wanted to update it's data base and after it was done Both models were included in it's list and work even though the vendor program software is only written for XP 32bit. For that part the windows built in software to manage scanner and pinters works just fine. Hope this helps someone.......

Cheers..............