There are two scan log files, scantwain.txt, and scanwia.txt. They are located in the following folders:

• %userprofile%\Local Settings\Application Data\ABBYY\ScanManager\11.00 in Windows 2000, Windows XP, Windows Server 2003;
• %userprofile%\AppData\Local\ABBYY\ScanManager\11.00 in Windows Vista, Windows Server 2008, Windows 7 and above.

You can also view the application logs and the licensing logs.