Since the original Logitech site may no longer host the specific legacy installer for all versions, you can find the driver and software packages on reputable third-party repositories:
For many users on Windows 7, the device is "Plug and Play," meaning the OS may automatically identify and install basic drivers once connected. If that doesn't work, follow these steps: logitech quickcam pro 9000 driver download windows 7
Provides various versions, including Driver 13.31.1044.0 for 64-bit systems. Since the original Logitech site may no longer
I have a Logitech Pro 9000 Pinwich I used on Vista, ... - JustAnswer the device is "Plug and Play
Lists multiple driver versions (e.g., 13.31.1044.0) that support both 32-bit and 64-bit Windows 7 . How to Install the QuickCam Pro 9000