"After adding the following files from a previous WinXP installation I was able to install and use my 11 year old Logitech Quickcam Pro USB (Dark Focus Ring) with Windows 7 32-bit using either VLC 1.1.3 or QuickcamWeb V12:
ks.inf
ks.PNF
kscaptur.inf
kscaptur.PNF
ksfilter.inf
ksfilter.PNF
stream.sys
Logitech's own v7.3.0.1113 drivers (included with Q