Download ((hot)) Microsoft.ace.oledb.12.0 Provider For Both 64-bit -

If you absolutely must have both architectures on a production server, run the 64-bit installer first with /quiet , then the 32-bit installer with /passive . Test thoroughly with your ETL processes.

For compatibility, most systems accept "12.0" as a valid ProgID even with the 2016 engine installed. download microsoft.ace.oledb.12.0 provider for both 64-bit

You must choose the version that matches your (e.g., your Excel, SSIS, or Custom App), not just your OS. If you absolutely must have both architectures on

October 2024 Microsoft Product Support Lifecycle: The ACE.OLEDB.12.0 provider remains supported as part of the Access Database Engine 2016 Redistributable, which is currently in extended support until October 14, 2026. or Custom App)

: The 2016 driver (ACE 16.0) is downward compatible and will work with connection strings specifying Microsoft.ACE.OLEDB.12.0 Bit-Level Conflict

For 32-bit: