Acces Oracle DB, do i need oracle client locally

i have asp.net application which acces an Oracle DB throught ODP .net, my project includes the Oracle.DataAccess.dll, my test server has a oracle 10g client on it so i can access the DB fine, although the DB is on another server, wheni move my application to my live server and open my application (logon.aspx connects the DB ) i get this error :Unable to load DLL 'OraOps10.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)
do i need to have an Oracle Client installation on my production server, can I not just access using ODP without having to have a client locally?

In your live web server, you will have to install ODP.NET using the OUI installer. The ODP.NET can be downloaded from "http://www.oracle.com/technology/software/tech/windows/odpnet/index.html". When you run the installer, you will have to select the ODP.NET component and install it.
Just GAC'ing Oracle.DataAccess.dll will not work as it requires several other unmanaged dlls to implement ODP.NET functionality.

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