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License Missing or Invalid error when scanning into KFS 4.1 Thin Client

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Article # 3031358 - Page views: 204

Issue

When scanning into the Kofax Front Office Server (KFS) 4.1 Thin Client, the following error occurs once the pages have been scanned:

Scan Error

Unable to use Kofax Web Scanning Control because a license is missing or invalid

 

Cause

The missing or invalid license error is caused by an eVRS licensing issue in the WebCapture Service.  This issue has been documented in TFS #1577171 and there are two certified solutions available that resolve this issue.

 

Solution #1:  Updated WebCapture Service Installer

  1. On the KFS Server, stop the World Wide Web Publishing Service
     
  2. Navigate to C:\Program Files (x86)\Kofax\Front Office Server 4.1\bin\ThinClient\js
     
  3. Backup the existing atalaWebCapture.js file to a location outside the KFS installation location
     
  4. Navigate to C:\Program Files (x86)\Kofax\Front Office Server 4.1\bin\ThinClient\bin
     
  5. Backup the existing Kofax.WebCapture.Installer.msi to a location outside the KFS installation location
     
  6. Download and unzip KofaxFrontOfficeServer-4.1.1.25.FIX14738.883.zip
     
  7. Right-click the unzipped atalaWebCapture.js file and select Properties
     
  8. If the file Properties | General tab indicates that the file is blocked, click Unblock and OK.
    Unblock file attribute.png
     
  9. Copy the unzipped atalaWebCapture.js file into  C:\Program Files (x86)\Kofax\Front Office Server 4.1\bin\ThinClient\js
     
  10. Right-click the unzipped Kofax.WebCapture.Installer.msi and select Properties
     
  11. If the file Properties | General tab indicates that the file is blocked, click Unblock and OK.
    Unblock file attribute.png
     
  12. Copy the unzipped Kofax.WebCapture.Installer.msi file into C:\Program Files (x86)\Kofax\Front Office Server 4.1\bin\ThinClient\bin
     
  13. Restart the World Wide Web Publishing Service
     
  14. Thin Client users will be prompted to install the updated WebCapture Service the next time they attempt to scan or access the Scan Settings.  
    Tip-Icon.png If a Thin Client user is not prompted to install the updated WebCapture Service, have them clear their browser cache and try again.

 

Solution #2:  Manually patch existing WebCapture Service on each Scan Station

product_documentation_-_user_guides_Important-Icon.png

Solution #2 is not necessary if Solution #1 has already been implemented.
  1. On each KFS 4.1 scan station, stop the WebCapture Service and close any browser tabs or windows that are connected to the KFS Thin Client.
     
  2. Navigate to C:\ProgramData\Kofax\WebCapture
     
  3. Backup the existing KfxEVRSw.dll file to another location
     
  4. Download and unzip KofaxFrontOfficeServer-4.1.1.25.FIX14727.zip
     
  5. Right-click on the unzipped KfxEVRSw.dll file and select Properties.
     
  6. If the file Properties | General tab indicates that the file is blocked, click Unblock and OK.
    Unblock file attribute.png
     
  7. Copy the unzipped KfxEVRSw.dll file into C:\ProgramData\Kofax\WebCapture  
     
  8. Restart Kofax WebCapture Service (Start Menu | Kofax WebCapture Service)

 

Level of Complexity 

Moderate

 

Applies to  

Product Version Build Environment Hardware
Kofax Front Office Server 4.1 All N/A N/A

References

N/A

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Article # 3031358