// For Access Database string connString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\Data\database.accdb;Persist Security Info=False;";
The /passive flag bypasses the logic check that looks for existing 32-bit Office applications. It installs the 64-bit ACE provider alongside your 32-bit Office. download microsoft.ace.oledb.12.0 provider for both 64-bit
You can often find archived versions of the specific installer via community threads like this Microsoft Q&A Discussion . The Microsoft
The Microsoft.ACE.OLEDB.12.0 provider is tied to the . It allows third-party applications (like SQL Server, Visual Studio, or custom .NET apps) to read and write data to Microsoft Access ( .accdb , .mdb ) and Excel ( .xlsx , .xls ) files without a full Microsoft Office installation. Download both executable files (e
For environments using modern Microsoft 365 apps, the Access Runtime also provides these drivers.
Download both executable files (e.g., AccessDatabaseEngine.exe for 32-bit and AccessDatabaseEngine_X64.exe for 64-bit).
Still unsure which version to download? Follow this flowchart: