= doc.FAQ.WhatConfigurationFilesAreUsedByMulti-TierDrivers

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 **openlink.sh and openlink.csh **  **odbc.ini **  **odbcinst.ini **  **openlink.sh and openlink.csh **  **oplrqb.ini ** *www_sv.ini* Windows drivers do not contain the Multi-Tier client files. Client environment variables appear on the Environment or Advanced tab of the System utility. The odbc.ini and odbcinst.ini files are replaced by the HKEY **LOCAL_MACHINE\SOFTWARE\ODBC\ODBC.INI and HKEY_LOCAL_MACHINE\SOFTWARE\ODBC\ODBC.INI sections in the registry. Windows server installations retain the oplrqb.ini and www_sv.ini files. ** 


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