Download and install the correct Visual Studio Redistributable from Microsoft.If you have multiple versions of Oracle libraries installed, make sure the new directory occurs first in the path Add this directory to the PATH environment variable.Unzip the packages into a single directory such as C:\oracle\instantclient_12_2.All installations require the Basic or Basic Light package. Download the appropriate Instant Client packages for your platform.For example, Oracle Call Interface 18.3 and 12.2 can connect to Oracle Database 11.2 or later. See the Instant Client Home Page for more information about Instant Client packages.Ĭlient-server version interoperability is detailed in Doc ID 207303.1. Instant Client Installation for Microsoft Windows 32-bit