i've installed PB12.6 trial version, and try to connect with Oracle 64bit instant client v.12.
OS is win10.
Connecting with sqlplus always is ok, but when i try to connect from DB profile in the PB panel, i get the "Oracle library OCI.DLL could not be loaded" error.
If i switch to the Oracle 32bit instant client v.12 (placed in another path and setting the ORACLE_HOME, PATH and TNS_ADMIN environment variable) it works.
So i can't understand if with Powerbuilder 12.6 is possible connecting with 64 bit Oracle client.