Error Code 151 & Error Code 161 - Certificate

 

Error Code 151 and Error Code 161 occur if the root certificate is not up to date on the system.

The root certificate is needed to verify the digital signature on the Printer driver DLLs.

Normally, modern operating systems, such as Windows 11/10 and Windows Server 2025/2022/2019/2016, update the Root Certificate automatically.

Note: If Windows does not have an active internet connection, then Windows cannot update the Root Certificate automatically.

 

To resolve Error Code 151 on the problematic computer, you must install the Root Certificate manually by performing the steps below:

 

  1. Download the latest Root Certificate

     

  2. Open the Start menu, type certmgr.msc, and hit Enter.

     

  3. In the certmgr window, go to “Third-Party Root Certification Authorities\Certificates” and check that you can find the downloaded certificate:

    If you see the certificate, skip to step 6.

    If you do not see the certificate, go to step 4.

     

     

  4. Please save the certificate to a folder on the problematic system, right-click on the certificate file, and click Install Certificate.

    In the Import Wizard, select “Place all certificates in the following store”, click Browse, and select “Third-Party Root Certification Authorities“.

     

     

  5. Open the certmgr.msc window again and check that the certificate appears in the list. You can refresh the list by pressing F5.

     

  6. Right-click on the installed certificate and select Properties.

     

     

  7. Check that the certificate is enabled and click OK.

     

     

  8. To check that the system can validate the certificate, please navigate to

c:\Program Files\Black Ice Software LLC\<>\RegisterProduct\eLicensex.dll

 

Right-click on the eLicensex.dll, select Properties > Digital Signatures > click on the signature in the list > Details:

The dialog should display “This digital signature is OK.”

 

 

Please restart the computer, and then print twice to the Black Ice Printer Driver to initiate a registration validation.

 

Open the Printer Manager and see if Error Code 151 no longer occurs.