TNSNAMES.ORA is located in Windows 2012 Server Can you please any one help me for the following 
TNSNAMES.ORA is located in Windows 2012 Server? Can you please give the correct path for the same.
it's in your $ORACLE_HOME\network\admin 

for example:
C:\app\myusername\product\11.2.0\client_1\network\admin\tnsnames.ora