TOAD OCI.DLL error on Oracle 11g

Dear Experts -
I've intalled oracle 11g on Windows Vista 64bit. I've Toad 9.7.x.
I'm getting the following error when i tried to connect to oracle from Toad.
Cannot load OCI DLL: C:\app\st\product\11.1.0\db_1\BIN\oci.dll

Thanks in advance for your time and help.
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fox9106Connect With a Mentor Commented:
Install the Oracle Client 32 bits.

You can download the oracle client 32 bits from this links

Oracle Database 11g Release 1 Client (
for Microsoft Windows (32-bit)


Oracle Database 10g Client Release 2 (

pinkurayConnect With a Mentor Commented:
In Vista you will get the error the best way to use oracle in vista is make a virtual server system and load oracle 11g on you can use any linux or windows OS then use toad or any other tool to access oracle.
I had the same problem. In my case I've installed the Oracle Database 11g for 64 bits and TOAD only works with clients with 32 bits.

To solve this problem install a 32 bit client.

sventhanAuthor Commented:
thanks experts.
install a 32 bit client of what?
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