Oracle.DataAccess still try to access oraops12.dll after uninstall

Question

First I have both 11 and 12 oracle client on my machine. But when i try to use 11g version of oracle.dataacess.dll .

I already remove a 12c register on regedit and s

Answer 1

There is a policy file in your GAC that is using the "bindingRedirect" tag

Policy.2.112.Oracle.DataAccess.config

Do a search for the file (I use Agent Ransack) then edit it.

The contents of the file look like this

For some reason, if you install Oracle 12, then try and uninstall it (even using gacutil.exe /u), the binding redirect is left in.

On my machine, it was in C:\Windows\assembly\GAC_32\Policy.2.112.Oracle.DataAccess\2.121.2.0__89b483f429c47342\Policy.2.112.Oracle.DataAccess.config

It is inaccessible via explorer, use agent ransack to track it down, then right click it and open it in an editor.