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Could not load file or assembly Atalasoft.dotimage or one of its dependencies error, when scanning in KFS 4.3 Thin Client

Article # 3031719 - Page views: 698


Attempts to scan into the Kofax Front Office Server (KFS) 4.3 Thin Client result in the following error:

Could not load file or assembly 'Atalasoft.dotimage, Version=, Culture=neutral, PublicKeyToken=2b02b46f7326f73b' or one of its dependencies. An attempt was made to load a program with an incorrect format.

How can this be resolved?


- 32 bit is enabled in KFS used application pool

- Kofax.SaLicImpLib.Interop.dll is existing in the Kofax Front Office Server bin folder



This server-side error can occur during image processing if the IIS Application Pool that runs the KFS web applications is configured to enable 32-bit applications.  By default, the Kofax Fornt Office installer sets the Enable 32-bit Applications value to False for the default application pool:  KFSAppPool.

To resolve this issue:

  1. On the scan station, log out of the KFS Thin Client and close the browser.
  2. On the KFS server, open IIS Manager, navigate to Application Pools, and select KfsAppPool (if a different application pool was designated during installation, select that application pool).
  3. Click Stop.
  4. Click Advanced Settings.
  5. Expand the General section and set Enable 32-bit Applications to False.
  6. Click OK.
  7. Click Start.
  8. In Windows File Manager, navigate to the following folder:  C:\Program Files (x86)\Kofax\Front Office Server 4.3\bin

  9. If the file Kofax.SaLicImpLib.Interop.dll is present in the \Front Office Server 4.1\bin folder, backup and remove it.
  10. In IIS Manager, start the KfsAppPool.
  11. On the scan station, log into the KFS Thin Client and scan the job again.


Level of Complexity 



Applies to  

Product Version Build Environment Hardware
Kofax Front Office Server 4.3      




Article # 3031719