Tried a number of things to enable connecting to Oracle with OCI (ODBC connection works , by the way):

* Set the ORACLE_HOME path in environment variables (using path C:\Oracle11g_64\product\11.2.0\client_1)
* copied ojdbc5. jar and ojdbc6.jar (11.2.0.3.0 version) to the Libext\JDBC folder
* checked tnsnames.ora

Still run into:

Error connecting to database: (using class oracle.jdbc.driver.OracleDriver)
no ocijdbc11 in java.library.path

ocijdbc11 is in the required path..