TNS-12557, TNS-00527 when starting the TNS Listener on Microsoft Windows (Doc ID 2205720.1)

Last updated on NOVEMBER 20, 2016

Applies to:

Oracle Net Services - Version 11.2.0.1 and later
Microsoft Windows x64 (64-bit)

Symptoms

Attempts to start an existing 11.2.0.1 Listener on Windows 2008 R2 results in:

 
Also, you have made sure that the ORACLE_HOME environment variable is not set (refs below)

Cause

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