WinFax seems to have been popular back in the day; I'm not sure that can be found nowadays.
https://en.wikipedia.org/wiki/WinFax

Or you can look in Simtels archives, they have some free software for faxing: http://www.lanet.lv/simtel.net/win95/fax.html

(I had thought the fax was a long dead item, but a couple of years ago I was told by a friend that he still used fax to communicate with some legal authorities in Austria, who only supported mailed letters and fax documents, no emails or other modern silliness. His old fax had just died, and we had to find an online alternate service that could send a fax to those luddites.)

WinFax and MighyFax were popular over here too, but weren't usually bundled with modems. Check out Cheyenne BitWare, I had tons of these in CDs back in the day (still version 3.x as fas as I can remember) from Conexant/Rockwell modem bundles. Maybe this was it?

https://archive.org/details/bitware3
https://archive.org/details/bitware-plus-4

Not that I recommend it, I remember it been pretty awful but windows does come with it's own fax software.
https://support.dynabook.com/support/viewCont … ontentId=108440

I remember occasionally using word to send a test fax, don't think it did incoming though? (proper faxes came in on a proper machine that didn't even double as a printer!)

Rwolf wrote on 2023-05-30, 10:40:

(I had thought the fax was a long dead item, but a couple of years ago I was told by a friend that he still used fax to communicate with some legal authorities in Austria, who only supported mailed letters and fax documents, no emails or other modern silliness. His old fax had just died, and we had to find an online alternate service that could send a fax to those luddites.)

Every few years we run into the same situation, usually at least one of the large photocopies is set up for fax but because no one has used it in so long we have to relearn how to use it again each time!