error while connecting to toad " Cannot load OCI DLL: D:\ORA_HOME\BIN\oci.dll "

when i tried to login to my oracle database i received this error

Cannot load OCI DLL: D:\ORA_HOME\BIN\oci.dll


best regards
deniro1974Asked:
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BawerCommented:
This problem occurs when you install the higher version of oracle client and the Toad version may not have the support or if you have installed the 64bit Oracle client and the toad version is 32 bit.

please confirm the above since you have not given any version details.
Praveen Kumar ChandrashekatrDatabase Analysist Senior Commented:
sometimes if there is multiple oracle homes installed the problem arise. please check and configure toad with the latest one.

Also check which is the current path in environment variable.
deniro1974Author Commented:
thanks for you answers for multiple oracle home this is not the case because i have fresh installation of windows and oracle and there is only one home for oracle but for my installation i have :

windows server 2008 R2 64
but for the toad am not sure where it will be mentioned.

Bets regards
BawerCommented:
Right, so the issue is obviously with versions since you have 2008 R2 64, better you download the newer version of Toad as follow which is V.11
http://www.quest.com/toad-for-oracle/
Praveen Kumar ChandrashekatrDatabase Analysist Senior Commented:
This is clearly the version issues, as toad is only 32 bit compatible software.

you can install a 32 bit oracle client then try to access through toad.

check this doc for more info

https://forums.oracle.com/forums/thread.jspa?threadID=2265339&tstart=0#9787711

http://toadfororacle.com/thread.jspa?threadID=33142

http://sqlnavigator.inside.quest.com/thread.jspa?threadID=33502

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