Oracle.dataaccess.dll Version 4.112.3.0 Download !!top!! Jun 2026

In this long-form guide, we will cover:

After installation, it is usually found in ORACLE_HOME\odp.net\bin\4\Oracle.DataAccess.dll or registered in the Global Assembly Cache (GAC) . Installation Recommendations ODAC 11.2.0.3.0 Install Instructions

You can install it via the NuGet Package Manager in seconds.

The version number 4.112.3.0 identifies two key things about the driver:

: The managed wrapper found the DLL, but the unmanaged side ( OraOps11w.dll ) cannot be located. oracle.dataaccess.dll version 4.112.3.0 download

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It eliminates the need for complex unmanaged Oracle Client installations.

The official source is through the . You will need to look for:

: If you don't want a full install, download the Instant Client with SDK for 11.2.0.3, which includes the necessary OCI files to support the DLL. Common Issues & Fixes In this long-form guide, we will cover: After

If the architecture of your application does not match the architecture of the ODP.NET assembly, you will encounter a BadImageFormatException with a message like .

Once installed, the file is typically located in your Oracle Home directory:

When modernizing legacy enterprise systems or maintaining .NET framework applications, developers frequently encounter runtime crashes or compilation errors pointing directly to this missing library. Understanding Version 4.112.3.0

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Once you have downloaded the installation file (typically an .exe or .zip file), follow these steps to install the driver:

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

Knowing this will allow me to guide you toward the most compatible .

To download , you must download the specific release of Oracle Data Access Components (ODAC) that includes it . This unmanaged DLL is part of the Oracle Data Provider for .NET (ODP.NET) . 1. Identify the Correct Download Package

“System.Data.OracleClient requires Oracle client software version 8.1.7 or greater.”