Leo right-clicked the setup file for the old Windows 7 driver. He ran the troubleshooter, set compatibility mode to Windows 7, and even tried Vista for good measure. The installer launched, gave him hope for thirty seconds, then crashed with a cryptic error: “Cannot load DLL: CanoScanUSBIO.”
Leo scanned a dozen more slides. Each one was flawless. Windows 11 didn’t crash. The scanner didn’t stutter. The ghosts were free.
He clicked Scan .
He tried the manufacturer’s website. Canon’s support page for the 5600F ended at Windows 8. The word “Legacy” was stamped everywhere like a digital tombstone.