I run Windows 10 x64 and have an Adobe Creative Cloud subscription - and a (low-end) Canoscan LiDE 210 USB scanner.
Canon does make 64-bit TWAIN drivers available for this scanner on Windows, but Adobe Photoshop does not support TWAIN anymore (IIRC, Photoshop CS4 32-bit is the last version to support TWAIN).
There is no standalone scanning program included in Canon's driver package.
Canon's driver also includes a very basic WIA driver that does not expose any custom UI for altering scanning parameters. Attempting to perform a WIA scan (from within Adobe Acrobat, Adobe Photoshop, or Windows Fax and Scan) only shows a very simplistic Windows-provided UI.
I thought the underlying WIA interface still exposes a number of tweakable parameters - is there any other program out there that would let me scan how I want to?