WIA Automation Library 2.0 does not support duplex scan


Symptoms


When scanning documents using an application that uses the Windows Image Acquisition (WIA) Automation Library 2.0, the application will fail to perform a duplex scan. The application scans one side of the document but not the second side.

Cause


This is a limitation of the WIA Automation Library 2.0.

Resolution


You can avoid this problem by developing your application using native WIA 2.0 (Windows Visa and Windows 7) or WIA 1.0 (Windows XP).

More Information


The following tutorial provides step-by-step instructions to use Windows Image Acquisition (WIA) in real-world applications:

WIA Tutorial