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SQL*Loader-704: Internal Error: ulconnect: OCIEnvCreate [-1]

Last Modified: 2012-08-13
I ma new to using SQl Loader. I am trying to load a datafile into a table and am running sqlldr from my pc. I have oracle 10.2 client installed in my machine. The ORACLE_HOME and PATH is properly set.
But when I invoke sqlldr , I am getting the following msg

H:\Data>sqlldr zbc/*********@test1 control=DataLdr.ctl

SQL*Loader: Release - Production on Tue Sep 1 11:08:47 2009

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

SQL*Loader-704: Internal error: ulconnect: OCIEnvCreate [-1]

zbc is a schema in the test1 database. I am logged into the pc as say name123.

Can anyone tell me what I am doing wrong.

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