>Is it just under MS-DOS, or can you also under Windows do strange things
>to a person's PC via anonymous FTP by reading and writing to the devices:-?
No, anything you can do under DOS can be done from Windows, just there is
less chance that a person at the monitor will notice. Also you are not
limited to attached devices: I have come into a DOS machine over the net
using TELNETD and FTPed out to another machine using the same NIC through
packet multiplexing and put the retrieved file directly into my directory
on an attached Novell server. Then printed the file using the CAPTUREd
printer on LPT1:. True the connection is rather fragile but not impossible.
Further, dual homing is possible (look at DRAWBRIDGE and KARLBRIDGE) so
it can be done and as soon as you give a user FTP access to the world
*anything* is liable to wind up on that PC.
You are best to adopt the concept that whatever it is *can* be done.