| Method | Description | How to Obtain | | :--- | :--- | :--- | | | A lightweight, command-line deployment option, ideal for grabbing specific files without a full graphical installer. | 1. Go to the official Oracle .NET Downloads page: https://www.oracle.com/database/technologies/net-downloads.html 2. Look for historical or "Xcopy" downloads. For this legacy version, the best search terms are: ODAC 11.2 Release 4 Xcopy or ODAC112040Xcopy . | | Full ODAC Installer | A standard MSI installer that configures everything, including GAC registration. | This can also be found by searching Oracle's archives for the same release name. | | NuGet Gallery (for newer projects) | For projects using the newer managed driver, you can add it directly from NuGet in Visual Studio. Note: This is not for the Oracle.DataAccess.dll version you specified, but for Oracle.ManagedDataAccess . | In Visual Studio , go to Tools > NuGet Package Manager > Manage NuGet Packages for Solution and search for Oracle.ManagedDataAccess . |