Awesome. Thanks for the feedback, insight and resources! In short, my brother 
and I used a program I wrote as a kid to copy files from point a to point b 
over the printer port. I used LapLink and for stable copying (as well as 
warming up my older dev skills) I thought this would be a good choice for 
contribution.

Certainly have much to contemplate!

Sent from my BlackBerry 10 smartphone on the Verizon Wireless 4G LTE network.
From: Rugxulo
Sent: Monday, May 18, 2015 19:30
To: Technical discussion and questions for FreeDOS developers.
Reply To: Technical discussion and questions for FreeDOS developers.
Subject: Re: [Freedos-devel] Lap Link-ish


Hi,

On Mon, May 18, 2015 at 6:14 PM, J.K. Benedict <[email protected]> wrote:
>
> Based on directionless observations, I have setup a second FreeDOS machine.
> Both are also dev environments.
>
> I was thinking of tackling the laplink-style copy (for many reasons, such as
> reliability and preserving nostalgia)
>
> Goal 1 = copy from target to destination via LPT port
>
> Goal 2 = any other desired method, such as serial ports? USB (male to male,
> obviously)
>
> Coding to show a direction and out my free time where my ideas are.
> Feedback/thoughts welcomed, such as what to "name" the program (portlink?),
> any desired argument flag format? IE, retries, recursive, timeout,
> compression?
>
> I am staging out the arguments later as I want to ensure end to end data
> copy.

This does vaguely remind me of some other (sadly, closed source) tools
... although I never tested them! And IIRC the author wasn't
interested in DOS anymore, so I'm not sure contacting him will have
much effect. (He basically once said he wanted to port everything from
DOS to Windows, ugh.) But just for completeness/comparison/ideas, it
might be nice (for you, not me!) to test them:

http://www.advsys.net/ken/utils.htm

"
CCOPY:
Copies files at 115,200 baud using the serial port. Uses compression.
Automatically skips files AND parts of files that haven't changed. For
example, if you appended some bytes at the end of a huge text file,
CCOPY will update the file very quickly.

DCOPY:
Copies files over a local network using the IPX protocol. Useful when
you have problems sharing hard drives. I used this all the time when
testing games over a network.
"

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