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How to resolve ProSeries failure to license error code 4-0

SOLVED•by Intuit•3•Updated December 05, 2023

This article will help you resolve the following error message:

  • ProSeries Failed to License due to an unexpected error. Entitlement components or .NET Framework may be missing or damaged. For assistance with this issue, please review our online knowledge base article. Error Code: 4 - 0

If you're receiving this error in ProSeries 2014 or prior, refer to this article on unlocking prior year ProSeries instead.

Resolving error code 4-0

After repairing each component, try to license again before attempting the next solution.

With the newer operating systems, the limited program rights can sometimes cause the program to not function properly. You can elevate these rights with a simple command.

  1. Right-click on the ProSeries shortcut on your desktop.
  2. From the menu choose Run as administrator.
  3. Once open go to the Tools menu and choose License Products. 

If the error message is still present, continue with the next section.

  1. Close ProSeries.
  2. Open Windows File Explorer.
  3. Browse to the following location: C:\ProgramData\Intuit\EntitlementClient.
    • ProgramData is a hidden folder. To view it, you may need to open Control Panel, then select File Explorer Options. Click the View tab, and then check the box labeled Show hidden files, folders, and drives.
  4. Open the v8 folder.
  5. Right-click on the entitlementdatastore.ecml file, then select Rename.
  6. Type old at the end of the file name, so that it reads entitlementdatastore.ecmlold.
  7. Open ProSeries.
  8. From the Tools menu, select License Products.

The entitlementdatastore.ecml file contains the license information for ProSeries 2015-current as well as QuickBooks Desktop. To re-license prior year ProSeries programs go to the Tools menu and select License Products. If you use QuickBooks you will need to go to the Help menu and select Activate QuickBooks Desktop.

If the error message is still present, continue with the next section.

  1. Close ProSeries.
  2. Open Windows File Explorer.
  3. Browse to C:\ProWinYY\msiupdates\EntlClnt.msi.
  4. Double-click on the EntlCnt.msi file.
  5. Select the option to Remove ProSeries 20YY Shared Components.
  6. Select Finish, and then click Close.
  7. Double-click on the EntlCnt.msi file to reinstall the components.
  8. Follow the on-screen prompts.
  9. Select Close.
  10. Open ProSeries.
  11. From the Tools menu, select License Products.

If the error message is still present, continue with the next section.

This licensing error may be caused by an issue with the Microsoft .NET Framework. We have found that a "repair" of the .NET Framework does not usually resolve this issue, but removing and reinstalling the .NET Framework does. This issue is recommended to be fixed by a Local It Professional or Computer Tech if you are not comfortable doing the attached steps.

Detailed instructions can be found here:

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