• muthyala_51, thanks for the extra detail, worked great!

    I can add that, in my case:

  • I didn't need to reboot after the base Oracle client nor the ODAC drivers
  • I did need to add the ORACLE_HOME environment variable, but the system path already contained the ..\client_1\bin folder. I did not add the \client_1 to the path
  • It looks like my 11gR2 client is version 11.2.0.1.0. The ODAC version that I downloaded was 11.2.0.30 found here:

    http://www.oracle.com/technetwork/database/windows/downloads/index-090165.html

    For some reason, when I first navigated to the drivers page, I could find the x86 and the x64 client installs, but the ODAC links only pointed to the 32-bit drivers... had to search for the 64 bit flavor.