Version 4.112.3.0 of Oracle.DataAccess.dll is significant because it provides a stable and feature-rich interface for .NET applications to connect to Oracle databases. This version supports Oracle Database 11g and later, and it's compatible with .NET Framework 4.0 and later. Additionally, it includes several bug fixes and performance enhancements.
If you are tired of dealing with heavy Oracle Client installations and "DLL Hell," consider switching to . It is available via NuGet, requires no "Oracle Home" installation, and is entirely bit-neutral. While 4.112.3.0 is required for older systems, the Managed Driver is the gold standard for new development.
Avoid "DLL download" sites. These often provide files that are stripped of their dependencies or contain malware. Because ODP.NET is an unmanaged driver, the DLL alone usually won't work without the rest of the Oracle Client home. How to Install and Register
This version is still found in many legacy enterprise applications, internal tools, and older ASP.NET web systems. If you are maintaining or deploying such an application, you may need to obtain this specific DLL version – not a newer one – due to strict assembly binding redirections or compatibility constraints.
Oracle does not offer the DLL as a standalone download. Instead, you must download the and extract or install the required component.
Oracle never published version 4.112.3.0 to NuGet.org. Some private NuGet servers (e.g., internal company feeds) may have it, but you cannot obtain it from the official NuGet gallery.
The legitimate source for this file is the Oracle Data Access Components (ODAC) installer.
