I have .config and it worked as expected. Wonder if the windows version can see both?
I think .config does not work but you can check it easily - just add
maxconnections=4 to file and restart wallet, if later you have no more than 4 connections that means
.config works else it does not work.

For other .conf and command line options check
https://en.bitcoin.it/wiki/Running_Bitcoin there are plenty of them but not all of them work when added to .conf file (some are
command line only, like -datadir and -rescan and -reindex) and some won't work at all because they were just recently added to Bitcoin and are not yet added to TEK wallets.