The Online Pub for Windows by Paul Sidorsky only supports Windows COM port handles, and not TCP Sockets, so it will not work.
The Telnet Door by Enigma/Dink released with his Citrisoft kit appears to only support Windows COM Port handles, and not TCP Sockets, so it will not work.
The Telnet Door by Mercyful Fate will get as far as making a remote connection, but once it displays the remote logon screen, it will disconnect (or perhaps the remote BBS disconnects due to a telnet negotiation issue). If anyone is able to get this to work correctly, please let me know.
The only telnet door that appears to work so far is the one by Rick at R&M, which uses settings simular to the one for BBSLink without needing a batch file.
Thank you to Mike Ehlert for his instructions in the NetFoss User Guide!! https://pcmicro.com/netfoss/