If you happen to stumble upon an unknown device in Windows Device Manager with a hardware ID of ACPI\INT33A0, it's the Intel Smart Connect Technology device. Download its driver from Intel or from your manufacturer's website.
I had a hard time finding the right drivers for a Canon PIXMA iX 4000 printer for Windows 7. The drivers available on the european website are old and missing 64-bit support. After googling around, I found the drivers on the asian website. Because I lost quite some time searching for them, I thought I just post the direct links here: