Windows 10g Only: ORA-12154 or ORA-6413 Running 32-bit Oracle Software on 64-bit OS

(Doc ID 334528.1)

Last updated on SEPTEMBER 18, 2017

Applies to:

Oracle Net Services - Version 8.1.7.0 to 10.2.0.3 [Release 8.1.7 to 10.2]
Oracle Objects for OLE - Version 8.1.7.0 to 10.2.0.3 [Release 8.1.7 to 10.2]
Oracle Provider for OLE DB - Version 8.1.7.0 to 10.2.0.3 [Release 8.1.7 to 10.2]
Oracle ODBC Driver - Version 8.1.7.8 to 10.2.0.3 [Release 8.1.7 to 10.2]
Oracle Data Provider for .NET - Version 10.2.0.1 to 10.2.0.3 [Release 10.2]
Information in this document applies to any platform.

Symptoms

You are attempting to connect to the Oracle database from a Windows platform using one of the following programmatic interfaces

after installing 32-bit Oracle client software on a 64-bit Windows operating system (OS) you receive one of the following errors:

     ORA-12154: TNS:could not resolve the connect identifier specified

        or

     ORA-6413: Connection not open.

Cause

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