Oracle 10g windows 7 64bit

When i run "sqlplus /nolog" in the command mode on my oracle server,it appear following error message.

SP2-1503: Unable to initialize Oracle call interface
SP2-0152: ORACLE may not be functioning properly

 solve this problem.
The reason that i can't run sqlplus is that the program can't find the oraociei10.dll.
So i copy the file to the path which define the environment variable PATH and i can run.

For DTS

ODTwithODAC1020221.exe

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