Why doesn't ODP.NET 11 xcopy deployment work on a machine with Oracle DB 10 installed?

Question

I have an app that uses a local version of ODAC 11 below the directory that the .exe file is in. The idea is that we want our app to use the local ODAC 11 regardless of wha

Answer 1

An article titled "Deploying ODP.NET with Oracle Instant Client" found at http://alderprogs.blogspot.com/2009/04/deploying-odpnet-with-oracle-instant.html gave what was for me about the best explanation of how to deliver a stripped down xcopy type deployment with your application. Only 5 Oracle DLLs required for support.

That said the answers by ObiWanKenobi and Josh Kodroff provides important additional info which matches with my experience.

Add to that: http://www.brothersincode.com/post/Oracle-ODPnet-xcopy-deployment-for-aspnet.aspx