I'm trying to get SQL*Plus to automatically execute my login.sql script that I've created. I've verified that the SQLPATH registry entry is in my Windows 10 registry. I've put the login.sql file in every possible folder that might be a target of where SQL*Plus is looking for it.
My ORACLE_HOME is dbHomeXE and SQLPATH is the child of ORACLE_HOME called 'dbs'. I still can't figure out if this is not set up right or it just has to be done manually these days, which would be sad if true. I say that because I've spent a lot of time trying to figure this out myself and read a lot of different articles that talked about how this functionality has changed between versions due to security. But it seems like the answer to this question is like finding a needle in a haystack.