Oracle.dataaccess.dll Version 4.112.3.0 Download [2021] May 2026

The assembly Oracle.DataAccess.dll version is the primary driver for Oracle Data Provider for .NET (ODP.NET), specifically bundled with ODAC 11.2 Release 4 (11.2.0.3.0) . This legacy version is critical for .NET Framework 4.0 (and above) applications that still rely on "Unmanaged" Oracle clients to connect to older databases or use features like User-Defined Types (UDTs). Direct Download and Installation

Oracle does not provide a standalone download for just the .dll . You must download the full package. oracle.dataaccess.dll version 4.112.3.0 download

Visit the Oracle .NET ODAC Downloads page . Since version 11.2.0.3.0 is older, check the ODAC 11.2 Release 4 (11.2.0.3.0) Install Instructions for archived links. The assembly Oracle

If your application cannot find the DLL (error FileNotFoundException ), it likely needs to be registered in the Global Assembly Cache (GAC). Use the OraProvCfg.exe tool located in your Oracle Home: You must download the full package

# Navigate to your ODP.NET bin folder cd C:\app\oracle\product\11.2.0\client_1\odp.net\bin\4 # Register the DLL OraProvCfg.exe /action:gac /providerpath:Oracle.DataAccess.dll Use code with caution. ODAC 11.2.0.3.0 Install Instructions - Oracle