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Seems if I set it up, with a tnsnames.ora and all, and set the Home option to folder the Oracle files are (this is where OCI.DLL is located), I simply get "Cannot find OCI.DLL: in C:\O\instantclient_11_2".

I've also used an empty Oracle Home and put the OCI.DLL folder on the path (and closed/reopened everything), and I still am unable to connect.

Any thoughts here? Thanks.

Hello,

To connect to Oracle using an instance of Oracle client you should create the following registry key and values, for example:

registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE\

registry values:
TNS_ADMIN=c:\OraInstantClient\network\admin
ORACLE_HOME=c:\OraInstantClient

c:\OraInstantClient <- the root path
c:\OraInstantClient\Bin <- the folder with all Oracle instant client files
c:\OraInstantClient\network\admin <- the folder with the tnsnames.ora file

it works on the 3.50.0.13 version of UniDAC.