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I see that "ODAC 11.2 Release 5 (220.127.116.11.20)" includes "Oracle Instant Client 18.104.22.168.0".
22.214.171.124.20 seems to only apply to "Oracle Developer Tools for Visual Studio".
So unless Oracle is quite sloppy about their version numbers (which they usually are not)
that would be exactly the same version as the download from
So I would feel safe about removing oraociei11.dll and replacing it with oraociicus11.dl
from Instant Client Basic Lite 10.2.0.3.0.
Also, the Instant Client shared library contains message and time zone files, and the chances
that these change between fixpacks is not so big.
Of course, if you need certainty that this is supported, you'd have to have support and
open a service request.