Oracle.dataaccess.dll Version 4.112.3.0 Download Fix May 2026

oracle.dataaccess.dll is the primary component of the Oracle Data Provider for .NET (ODP.NET)

The results were a graveyard. Dead links to Oracle’s old edelivery site. A sketchy forum post in Russian from 2014. A single, lonely Stack Overflow question with zero answers. oracle.dataaccess.dll version 4.112.3.0 download

1. Run setup.exe from the Oracle Client or ODAC installer.
2. Choose “Custom” installation.
3. Ensure “Oracle Data Provider for .NET 4” is selected.
4. Complete the installation.

1. Prefer Oracle's official ODAC/ODP.NET downloads matching your Oracle client/server version and bitness from Oracle's download portal (use Oracle client or ODAC installers that include Oracle.DataAccess).
2. If using NuGet and targeting a legacy environment that requires this specific package, install the official NuGet package:

   The managed driver is a single DLL (~5 MB), fully .NET, no Oracle client required, and supports async. oracle