You need to make sure that your Toad bit-size matches your Oracle home bit-size.
You also need to check that on Toad connection screen that the home points to exactly where you think it is supposed to. If you have multiple homes this too can be an issue.
Finally if using Oracle instant client, then you need to follow the Oracle directions – i.e. add instant client to env PATH and create env var TNS_ADMIN for where your tnsnames.ora file is located.
From: PankajUkharde [mailto:bounce-PankajUkharde@toadworld.com]
Sent: Friday, August 02, 2013 4:58 AM
Subject: [Toad for Oracle - Discussion Forum] TOAD Error: cannot load OCI DLL for TAOD_FOR_ORACLE_FREEWARE220.127.116.11
Thread created by PankajUkharde
Hi I got error while connecting to Toad for oracle(18.104.22.168)_freeware: TOAD Error: cannot load OCI DLL: c:\Users\patilpan\Downloads\Softs\instanntclient_12_1\oci.dll, but the file is there
in mentioen directory, Please help.
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