At the heart of these errors lies a small, powerful, but often misunderstood piece of software:
If you have Office 2016 or later installed via Click-to-Run (the standard download from office.com), you cannot install the 64-bit Access Engine side-by-side. However, many 32-bit Office installs exist. The 32-bit engine coexists peacefully with 32-bit Office.
If you have ever worked with Excel, PowerShell, or SQL Server Integration Services (SSIS), you have likely encountered a cryptic error message involving "The 'Microsoft.ACE.OLEDB.12.0' provider is not registered" or a warning about a "bitness mismatch."
Have you been bitten by the "bitness mismatch" bug? Let us know in the comments below.
Thousands of enterprise apps—ERP systems, CRM plugins, legacy VB6 tools—were written assuming a 32-bit provider. These applications hard-code the path to msaceol.dll in the SysWOW64 (32-bit system folder). If you install the 64-bit engine, these apps simply cannot see the driver.
At the heart of these errors lies a small, powerful, but often misunderstood piece of software:
If you have Office 2016 or later installed via Click-to-Run (the standard download from office.com), you cannot install the 64-bit Access Engine side-by-side. However, many 32-bit Office installs exist. The 32-bit engine coexists peacefully with 32-bit Office. access database engine 32 bit
If you have ever worked with Excel, PowerShell, or SQL Server Integration Services (SSIS), you have likely encountered a cryptic error message involving "The 'Microsoft.ACE.OLEDB.12.0' provider is not registered" or a warning about a "bitness mismatch." At the heart of these errors lies a
Have you been bitten by the "bitness mismatch" bug? Let us know in the comments below. If you have ever worked with Excel, PowerShell,
Thousands of enterprise apps—ERP systems, CRM plugins, legacy VB6 tools—were written assuming a 32-bit provider. These applications hard-code the path to msaceol.dll in the SysWOW64 (32-bit system folder). If you install the 64-bit engine, these apps simply cannot see the driver.