P6 8.3 Professional - how to backup database connections?

Is there a way?

Hello Daniel,
this is how my Path=E:\instantclient_11_2;...... variable looks like. I have put tnsnames.ora and sqlnet.ora in E:\instantclient_11_2 and this is how
TNS_ADMIN=E:\instantclient_11_2 looks like.
Contents of tnsnames.ora
# tnsnames.ora Network Configuration File: E:\app\Administrator\product\11.2.0\dbhome_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
ORACLR_CONNECTION_DATA =
(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    (CONNECT_DATA =
      (SID = CLRExtProc)
      (PRESENTATION = RO)
ORCL =
(DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.3.27)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = orcl)
Contents of sqlnet.ora
# sqlnet.ora Network Configuration File: E:\app\Administrator\product\11.2.0\dbhome_1\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.
# This file is actually generated by netca. But if customers choose to
# install "Software Only", this file wont exist and without the native
# authentication, they will not be able to connect to the database on NT.
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
still the same error
Database connection failed: Error Message:
Bad public user name or password. Cannot load OCI DLL: oci.dll;
I tried both ORCL and //172.16.3.27:1521/ORCL as connection strings.
should instant client used be 32 bit as well?
regards, Prasad

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