On Windows Server 2008 R2, I have installed and extracted oracle instant client 18.104.22.168.0. I have added to the existing path the location where sqoras32.dll resides. Via the ODBC Data Source Administrator, when I attempt to add the driver to the System DSN, I get the following error
The setup routines for the Oracle in instantclient_12_1 ODBC driver could not be loaded due to system error code 126: The specified module could not be found.
It then lists the correct path and filename for the sqoras32.dll resides.