Note: In most cases for modern Windows servers and 64-bit operating systems, you will need the AccessDatabaseEngine_X64.exe to resolve the "not registered" error in 64-bit applications.
: If you specifically need the 12.0 version, some community members host archived links through platforms like Chocolatey or the Wayback Machine. 2. How to Install Both (Side-by-Side) download microsoft.ace.oledb.12.0 provider for both 64-bit
Get-ChildItem "HKLM:\SOFTWARE\Microsoft\Office\14.0\Access Connectivity Engine" -ErrorAction SilentlyContinue Note: In most cases for modern Windows servers
To install both versions side-by-side:
If your Excel or SQL Server is 64-bit, you must have the 64-bit driver. you must have the 64-bit driver.