If you are using ESSL eTimeTrack Lite attendance software and facing errors like “Unhandled Exception” or “Microsoft.ACE.OLEDB.12.0 provider is not registered”, you are not alone.
Many biometric attendance users, HR teams, and installers in India face these issues during installation, system upgrades, or daily usage. The good news is — most of these errors are common, fixable, and do not require reinstalling everything.
In this guide, we explain why these errors occur, how to fix them step-by-step, and when you should take professional support or AMC help to avoid data loss.
How to Fix ‘Microsoft.ACE.OLEDB.12.0’ Error in essl eTimeTrackLite attendance software
If you’re facing the login error “The ‘Microsoft.ACE.OLEDB.12.0’ provider is not registered on the local machine” while using eTimeTrackLite Attendance Software, it’s due to missing Microsoft database drivers required for Access or Excel file connections

How to Fix ‘Microsoft.ACE.OLEDB.12.0’ Error in eTimeTrackLite
If you’re facing the login error “The ‘Microsoft.ACE.OLEDB.12.0’ provider is not registered on the local machine” while using eTimeTrackLite Attendance Software, it’s due to missing Microsoft database drivers required for Access or Excel file connections
The error appears because eTimeTrackLite relies on Microsoft OLEDB drivers to communicate with Excel or Access databases. If these drivers are missing or incompatible with your Windows setup (e.g., 64-bit OS but 32-bit software), this error is triggered.
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