This version ships with or 11.2.0.3.20 (patch set). To install it:
You can also use sn.exe -T Oracle.DataAccess.dll to view the public key token. The expected token for v4.112.3.0 is 89b483f429c47342 .
This is the most common error. It usually means a mismatch between the architecture of your application pool and the DLL. oracle.dataaccess.dll version 4.112.3.0 download
Before diving into the download, it is critical to understand what this file does:
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Architecture MismatchOne of the most frequent errors is the "BadImageFormatException." This happens if your application is running as a 64-bit process but trying to load a 32-bit version of Oracle.DataAccess.dll, or vice versa. Ensure your project's "Platform Target" matches the architecture of the Oracle Client you installed.
Also, the assembly is registered in the Global Assembly Cache (GAC). You can find it at: C:\Windows\Microsoft.NET\assembly\GAC_64\Oracle.DataAccess\v4.0_4.112.3.0_... This version ships with or 11
To ensure the security and stability of your environment, always download Oracle components directly from the Oracle Technology Network (OTN). You will need a free Oracle account to access these files.
While some legacy features (like distributed transactions via MTS) might differ, most modern applications can transition easily, saving hours of deployment time. This is the most common error
For , select:
If you are starting a new project today, prefer the ( Oracle.ManagedDataAccess.dll ). But if you must support an existing application on version 4.112.3.0, follow the steps above to achieve a reliable, secure, and production-ready configuration.