Oracle.dataaccess.dll Version 4.112.3.0 ((full)) Download
The Oracle.DataAccess.dll usually needs to be in the GAC for applications to find it properly. The ODAC installer generally does this automatically, but if you have a standalone DLL, you must use gacutil.exe . Step 4: Validate Compatibility
If your app is 32-bit but you provide the 64-bit DLL, you will encounter a BadImageFormatException .
Official downloads for version 4.112.3.0 are bundled within the .
If your application compiled against a slightly different 4.x version of ODP.NET, you can force it to use version 4.112.3.0 using a runtime redirection configuration: oracle.dataaccess.dll version 4.112.3.0 download
Best for development machines where you need the DLL registered in the GAC (Global Assembly Cache). Common Installation Issues
This version belongs to the suite. Version 4.x indicates that it is built for the .NET Framework 4.0 or higher . It is a "native" driver, meaning it relies on underlying Oracle Client software (OCI) installed on the machine to function. Where to Download
Ensure your ORACLE_HOME environment variable points to the directory containing the native 11.2.0.3 client binaries, and that this path is listed in your system's PATH variable. The Oracle
Run the setup.exe from the ODAC download. Ensure you choose the appropriate architecture (x86 or x64) to match your application's build target. Step 2: Configure System PATH
Where the version appears
Oracle.DataAccess.dll is the unmanaged driver that allows .NET applications to connect to Oracle databases. Unlike the "Managed" driver ( Oracle.ManagedDataAccess.dll ), the unmanaged provider requires the Oracle Client software (like Instant Client or full ODAC) to be installed on the machine running the application. 4.112.3.0 Release: Oracle Client 11.2.0.3 / 11.2.0.4 Target Framework: .NET Framework 4.0 and above. Official downloads for version 4
While version 4.112.3.0 is legacy, you can find official packages on NuGet.org for newer "Managed" versions that don't require a full client installation. 3. Locate the DLL After Installation
Websites like DLL-files.com , Fix4DLL.com , Pconlife.com , or similar to download Oracle.DataAccess.dll . These are unverified, often contain:
The output will list all versions present in the GAC, including their public key tokens and processor architectures.