Serial port COM3 for file transfer (using file dialog/TCP bridge).

[cr1901]

Normally, when I have a PC with only a serial port and install media, I do a bootstrap from tcom.com or a BASIC Kermit to upload additional files to my machine.

COM2 connects to a real port (which is great!), so you can emulate a file transfer with a null modem cable connected to another serial port on your local machine. However, I'd like a simpler setup.

Would a COM3 port that is attached to a listening TCP port that sends/receives raw bytes be something you'd be interested in? I am willing to prototype this feature myself.

[dbalsom]

the idea occurred to me, and I had an idea for a TCP/IP modem using some kind of hayes commands to 'dial' IP addresses

Just noting you can already accomplish this sort of thing with the right os support, see
https://com0com.sourceforge.net/ and its com2tcp module, you can even do com->ssh with stunnel. https://www.stunnel.org/

and i believe on linux it's even easier as you can redirect a serial port with netcat.