Not sure if this is ultimately helpful but I found some DOS Technical documentation programs from the Time periods of DOS 5.0 and DOS 6.0.

They are from the Flambeaux corporation.

One covers DOS 5.0 and the other covers DOS 6.0.
They both mention earlier versions of DOS and things as such.
I think they might be helpful if not already covered 😜.
See attached ZIP file. (It runs nicely in DOSBox btw)

Also I found this website called Ricky's Commands which cover all the different commands that could be called in the Commandline from various DOS, Windows OSes.

http://home.earthlink.net/~rlively/
(Click on Ricky's commands to enter the website)
or Download the entire website through the Zip File Download linked right next to entrance link.

On that same website (above) he has filelists (not the actual files) of the various systems.
It clearly shows XCOPY and MORE as being part of the DOS 5.00 package 😁.
See below for direct linkage to the filelists:
http://home.earthlink.net/~rlively/MANUALS/FI … ELIST/INDEX.HTM

Also I found anoter website with some DOS tools that could be helpful.
It also has DOS 6.0 Help but it seems to be missing about half of the Documentation but I was able to find a more compelete helpfile on another site 😜. Has an old NeoPaint DOS paint program and GSW DOS graphics image file converter.

http://alexfru.chat.ru/etools.html

Hope you guys find some use out of this 😀.

/Ieremiou

*Note: this might be good to sticky?*