You cannot typically download this single DLL safely from a third-party site. It must be installed as part of a larger package to ensure all "unmanaged" dependencies (like ) are present. Official Source: Download the Oracle Data Access Components (ODAC) Specific Version: ODAC 11.2.0.3.0 on the Oracle Technology Network. Alternative (Developer): A community-maintained version is available on
After installing Oracle 11.2.0.3 Client:
If you cannot find or install the exact 4.112.3.0 version but have a slightly newer 11g component installed (such as 4.112.4.0), you can force your application to use the newer version via an assembly binding redirect in your App.config or Web.config file: oracle.dataaccess.dll version 4.112.3.0 download
The specific version corresponds to the 32-bit version of Oracle Data Access Components (ODAC) 11.2.0.3 . This is a significant version because it was widely used during the transition from .NET Framework 2.0/3.5 to 4.0, and it is commonly required for legacy enterprise applications running on Windows Server 2008 R2 or Windows 7.
Verify your tnsnames.ora file located in \network\admin within your Oracle Home. Conclusion You cannot typically download this single DLL safely
Navigate to the 64-bit GAC utility directory and run the same command. Local Application Deployment ("XCopy") If you prefer a portable, zero-installation deployment: Download the ODAC XCopy version from Oracle. Extract the files to your application directory.
If you are starting a new project or can upgrade an existing one, consider using Oracle’s ( Oracle.ManagedDataAccess.dll ). Conclusion Navigate to the 64-bit GAC utility directory
Developers often search for this specific version because ODP.NET is version-sensitive
: It is compiled for the .NET Framework 4.0 (and compatible with 4.5+), making it a staple for applications built during the peak of Windows Server 2012 deployments.
Oracle recommends using the latest stable versions from their Official .NET Downloads page for modern security and patches. However, if you specifically require version 4.112.3.0 for legacy compatibility, you should look for archived installers: Oracle.DataAccess.dll ODP.NET vs Nuget package - GitHub
This occurs when a 64-bit application attempts to load a 32-bit (x86) version of Oracle.DataAccess.dll , or vice versa.