To obtain the official, secure file, download the complete installer package through official Oracle channels: 1. ODAC Software Downloads (Recommended)
Use code with caution. Modernizing Your Driver Infrastructure
Locate the archive page. Download the version corresponding to 11.2.0.3.0 .
Navigating downloads for legacy Oracle components can be challenging due to Oracle's strict licensing and structured distribution channels. This guide provides a technical overview, secure download pathways, installation procedures, and troubleshooting steps for this specific DLL version. Technical Specifications: Version 4.112.3.0
Use sqlplus or a simple .NET console app to open a connection.
Unmanaged ODP.NET is extremely sensitive to versioning. The to avoid "Incorrect format" or "Provider incompatible" errors. Required Version DLL Version Oracle Client 11.2.0.3.0 ODAC Release 11.2 Release 4 How to identify ODAC version ? - Oracle Forums
This occurs when a 64-bit application attempts to load a 32-bit (x86) version of Oracle.DataAccess.dll , or vice versa.