I have been unable to do an export from my PC and I have tried copying all the files in my colleges ORACLE_HOME into my oracle home, but it did not work. However, before doing the copy, I backedup all my files in my ORACLE_HOME. I am now unable to tnsping, I have deleted all files in my ORACLE_HOME and restored all the old files. However, I am still getting the same error during the tnsping. This error is listed below. No changes have been made to the tnsnames.ora, or sqlnet.ora so I am a little confused as to why this is happening. I have checked the environment variables and entries in the registry and it all seems to be fine.
TNS Ping Utility for 32-bit Windows: Version 188.8.131.52.0 - Production on 04-MAY-20
(c) Copyright 1997 Oracle Corporation. All rights reserved.
TNS-03505: Message 3505 not found; No message file for product=NETWORK, facility=TNS
Any advice would be so welcome.