DevOps, CI/CD and Automation

Hello,
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I have a COM+ application I am testing on 10GR2 that uses ORAOleDb driver to connect.
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The application works fine with ODAC 10.1.0.4.0.
However installing ODAC 10.2.0.2.20 the application does not work and fails with E_FAIL.
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<li>I have a clean installation with different homes for DB and client as suggested. </li>
<li>All other applications use the new divers fine and connect without issue only COM+ objects cannot connect and use transactions.</li>
<li>I have tried the permissions fix for the bin dir and confirmed the ACLs are in place.
</li><li>I have run the oramtsadmin.sql on the database and confirmed it completed without errors.</li>
<li>I have made sure the MTxOCI registry key values are correct for 10G and that the files exists.</li>
<li>For the login for the COM+ application I used the same login that worked in the previous ODAC, I have also set it for testing to use various admin level accounts to try and get it working, no luck.</li>
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What I need to know is what might a upgrade be missing from the upgrade (or that is new to set) that will make it work.
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I have spent hours trying to query google and the forums for an answer and will continue to do so.
<br>My thanks for any help or knowledge passed on.
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Regards,
Eric