> Does anybody out there have the source for a zmodem file
 > transfer?  I've looked in swag, and it ain't there!

Here you go.  Good stuff it is, too.

TPZSFZ.LZH      32696  20-Jun-89  Zmodem in Turbo Pascal (Jim Louvau)

It's about TP version 5 or 5.5, at a guess, but that shouldn't be a problem.

UNIT TpzAsync;
(* Modem interface routines for Turbo Pascal Zmodem *)
(* (c)1988 by J.R.Louvau                            *)
(* You will need a copy of PIBASYN45 to compile     *)
(* this unit.                                       *)
INTERFACE
USES Dos, PibAsync, PibTimer, GlobType;

I don't seem to have PIBASYN around any more.  Not sure if it's source or
just .TPU, but all the rest of it is there.

Ian  (23 hrs, 14400 - but you should easily find these in Melbourne ..)

--- MaltEd 1.0.b5