Instant Client 10.1.0.5 and ORA-12640 with External Authentication

Question

I am using v10.1.0.5 of Instant Client on Windows 32bit. I have hit bug 5114330 (ANO: ORA-12640 authentication adapter initialization fails if Operating System User does not have admin rights). This was fixed in patch 12 of 10.1.0.5. I copied the updated files from patch 28 that related to the instant client files and I am still hitting the same problem. How do I patch my instant client install to overcome this bug? Using v10.2 of instant client is not an option as it is not compatible with our application.
Kind regards,
Steve

Answer 1

I guess that if you know what you are doing, that approach should work fine; the "standard procedures" are there to guide people who have little experience and to provide a cookbook for how to do it.
I am not sure about version 10.1, but in Instant Client 10.2 everything except for the Instant Client shared library (in 10.1 that is oraociei10.dll) is the same as the regular client. The Instant Client shared library contains messages and similar, so probably has no influence on a code bug as you experience it.
What I would do in your case is to install the regular client on a test machine, apply the patch there and see if the problem is fixed there.
If not, you have a better case for Oracle support, because they understand the regular client much better.
If it works there, replace the Instant Client shared libraries with the files from the regular client and see if it works.
In the case that the error persists, I guess there's no way around a Service Request, because nobody except for Oracle can look into the code.
Yours,
Laurenz Albe