"Error fired in : Module MNTools - Class bas_DatabasesJET" message in Business Manager
Learn how to resolve the error "Error fired in : Module MNTools - Class bas_DatabasesJET - Function Generation_Structure_Base_JET Error fired" message in Business Manager.
Products affected: Business Manager
Issue
When opening Business Manager, Business Manager stops when opening the TA database and the following errors are displayed:
- MNTools * Error fired in : Module MNTools - Class bas_DatabasesJET - Function Generation_Structure_Base_JET Error fired : Number 3343 Source DAO.Indexes Description Unrecognized database format 'C:\Program Files (x86)\Pitney Bowes\Business Manager\bases-l\Buffer.mdb'.
- MNTools * Error fired in : Module MNTools - Class bas_DatabasesJET - Function Generation_Structure_Base_JET Error fired : Number 91 Source MNServices Description Object reference not set to an instance of an object.
Microsoft is working on a resolution and estimates that a solution will be available in early February. For more information, see the following Microsoft pages:
Cause
On January 8, 2019, Microsoft released the following updates that caused issues with opening Business Manager:
- Windows 7: KB4480970
- Windows 10: KB4480966
Resolution
Microsoft has released new KB update to fix this problem. Run Windows Update to download the KB update below for your operating system:
| Date | KBArticle | Type | Applies To |
| 02/12/2019 | 4486563 | Monthly Rollup | Windows 7 Service Pack 1 Windows Server 2008 R2 Service Pack 1 |
| 02/12/2019 | 4486996 | Security Update | Windows 10, version 1709 |
| 02/12/2019 | 4487000 | Monthly Rollup | Windows 8.1 Windows Server 2012 R2 |
| 02/12/2019 | 4487017 | Security Update | Windows 10, version 1803 |
| 02/12/2019 | 4487018 | Security Update | Windows 10 (OS Build 10240.18132) |
| 02/12/2019 | 4487020 | Security Update | Windows 10, version 1703 |
| 02/12/2019 | 4487026 | Security Update | Windows 10, version 1607 Windows Server 2016 |
| 02/12/2019 | 4487044 | Security Update | Windows 10, version 1809 Windows Server 2019, all versions |
Permissions Required
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UPDATED: August 14, 2021