IIRC, the Windows monospace font didn't have entries for all of those, so it came out a little funny looking.
--- Synchronet 3.18b-Win32 NewsLink 1.113
From kelvin@kelvin@pro-kegs.uucp (Kelvin Sherlock) to comp.sys.apple2 on Saturday, November 07, 2020 17:18:09
From Newsgroup: comp.sys.apple2
See the ProTERM Owner's Manual, appendix E. In short:
control-N: normal mode
control-O: inverse mode
control-P: mouse text