Many years ago when the authors of nFTP(PM) were in the process of ending the development of this great program and I had the foresight to ask if they would pass along the source code.
Lo and behold, they were gracious enough to send me a copy.
At the time I was still into programming, (I can't stand it, gave it up and never speak of it), but I never did do anything with it.
I thought that I had lost it in a hard disk crash many years ago, but I just found a copy.
I have no idea if the source code for this is out there already, (if so, I know nothing about it), but if any developer/programmer here would like to do something with this source code send me a PM/E-mail address and I'll pass it along.