Anyone familar with ZModem?

Here is my situation. I am sending data from a uC via
a serial port to a PC. On the PC, I have Hyperterminal
running in capture mode. I have the baud rate set at
57.6kbps 8-N-1 and hardware flow control. I am
properly taking care of the hardware flow control
lines CTS,RTS,DTR and DSR by looping them back to each
other. I can transmit my data which is HEX and comes
out as ASCII characters on the Hyperterminal window
just fine; however what I really want to do is to use
the "Receive File" mode instead of the "Capture Mode"
because I want my data to be automatically saved as a
file. As opposed to just sitting in the Hyperterminal
window.

When I start the "Receive File" mode in Hyperterminal
it asks me for the protocol...XModem, Kermit, ZModem
etc. I have heard that ZModem is the best but I would
be willing to use any one of them if I could just get
the PC to start receiving my data using one of these
protocols ("Receive File mode"). What happens is that
it times-out like it is waiting for a special byte or
a header before the data. It never starts receiving.

Does anyone know what I need to send the PC in order
for it to start receiving my data using ZModem?
Perhaps it is a special header or couple of bytes
preceding the data that will start it. Again, the
serial port is configured for 57.6kbps 8-N-1 and
hardware flow control and I am using the same hardware
flow-control loopback trick that I used successfully
with the "Capture mode".

Any Hints, Suggestion, or Clues.

The next thing I am going to try is to send a file
with just one ASCII character from one PC to another
using a null modem and this "Receive mode" using
ZModem and probe the data that gets sent.

Thanks,

uC_Novice

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