	PC-VT version 8.2		USER Supported Software

					25 May 1985
					9067 Hillery Drive
					San Diego, CA 92126

Dear User of PC-VT;

	Enclosed is the latest version of PC-VT and its documentation. I
formatted the diskette double sided, 9 sectors per track. PC-VT runs on
the PC, the PCjr, and the PC AT under DOS 1.1, 2.0, 2.1, and 3.0.

	This version of PC-VT contains both a Hayes compatible dialer and
XMODEM with CRC transfer capability. It supports DOS 2 path names. PC-VT now
supports VT52 compatibility mode and ALT-F1 thru ALT-F10 as macro keys. 

	The program itself is named PC-VT.EXE. Place your diskette into one
of your diskette drives. Set the default diskette letter in DOS to that
drive. If you have a modem which requires manual dialing, dial up the host
computer and turn on the Modem. Start the program by typing PC-VT in response
to the DOS prompt. PC-VT comes preinitialized to communicate at 1200 baud
with 8 data bits, no parity, and 1 stop bit. If these parameters are not
correct for your installation they can be changed. See the discussion of the
SETUP displays in the documentation for instructions on how to change
parameters.

	As PC-VT starts up, it will initialize the COM port and establish the
connection to the modem. The CRT will show the communications display. Lines
1 through 24 are used as the emulated VT100/102 screen which has 24 lines. 
Line 25 is used as a status line. The first thing that you will see on line
25 is the word "ON LINE" and the version number of PC-VT in the lower left. 
This indicates that PC-VT is operating normally and is ready to communicate. 
Press Alt H for the HELP displays. Most host systems require that the
terminal initiate communications so press ENTER. Your host computer should
now be responding. From this point on, PC-VT runs as a VT100/102 Video
Terminal.

	You can use PC-VT on the IBM fixed disk as well. There are no special
requirements. Copy the program PC-VT.EXE to the fixed disk. Then just start
up PC-VT as described above.

	The documentation file is named PC-VT.DOC and can be copied to
any line printer. The file PC-VT.SQM is just a short summary of the
capabilities of PC-VT.

	If any files on your distribution disk have a "Q" as the second
character of the extension, they must be Unsqueezed with the USQ program.

	The file PC-VT.CRD is a quick reference card for use with PC-VT. I
would like to thank Richard C. Rohrdanz of the Boston Computer Society for
his help in creating PC-VT.CRD.

	I've also enclosed a set of XMODEM programs for the VAX running VMS.
They were written by Jim Belonis of the University of Washington. They work. 
I'll leave it up to you to upload them to the VAX and compile them. Read the
file named XMODEM.DOC. These files are combined into a library file named
XMODVMS.LBR. You will need the Library Utility (LU.EXE or LAR.EXE) to remove
them from the library file. If they have a Q as the second letter of the
filetype, they are SQueezed. You will need the program USQ.EXE to make them
ASCII files.

	If you could upload PC-VT and the XMODEM programs to your local RBBS,
I would appreciate your help. You can upload PC-VT.EXE, PC-VT.SUM, PC-VT.DOC,
and the XMODEM files on XMODVMS.LBR.

	A general comment about PC-DOS "patches": since there is no way that I
can try every patch to PC-DOS with PC-VT, if you are having problems, try
PC-VT with an unpatched DOS to see what happens. The issue is how long some
of the attached programs run with interrupts turned off. The comm line to the
host is asynchronous. If PC-VT cannot get back to the RS-232 port before
another character comes in, the old character is lost and an overrun error is
generated.

	Note to UNIX users: most UNIX hosts send garbage or parity as the 8th
bit if you are transmitting at 8 data bits. PC-VT tries to get rid of these
bits before it processes the byte. There are cases ( especially in the older
versions of PC-VT) that still cause problems. Set your transmission protocol
up at 7 data bits if you don't need the 8th. This version of PC-VT will let
you run at 7 data bits for normal operation and will switch automatically to 8
data bits, 1 stop bit, and No parity for XMODEM transfers. Also, the ALT =
key combination will send an ASCII 127 which is a rubout to UNIX. The
backspace key also sends a rubout, but if you have redefined the backspace to
a CTRL-H, you can still send a rubout with the ALT =.

	With this version of PC-VT, I have made the program more compatible
with Computer Conversations' "Enhanced PC Talking Program" for the visually
impaired. Specifically, the Alt-Function keys which can be used as macros in
PC-VT, will not interfere with the Talking Program if they are not used as
macros. The Alt-1 to Alt-dash keys are no longer used by PC-VT. Their
functions were moved to other Alt keys. The Alt= key, which in PC-VT is used
to send a Delete (ASCII 127), is the only key which both programs use. For
more information on the Talking Program, contact Ron Hutchinson at Computer
Conversations, 2350 North 4th Street, Columbus, OH 43202, 614-263-4324.

	Both the .EXE module and source for PC-VT are available for commercial
distribution. Contact me for details of the licensing arrangements and fees.

	Also included is a line printer redirection program which I wrote. It
is in the library file LPTXxxx.LQR.

	Since this program is user supported, it is user driven. I
continually make upgrades based on user requests. Since my version number
would be 4853.3434543 if I changed the version number with each minor update,
I bump the version number only when a significant change occurs. I will use
this file to list the upgrades within each version number release:

DATE	Function:		Change:
----	---------		-------
5/25/85	First release of version 8.2

	I hope that the program is of use to you. I would appreciate any
comments which you might have regarding the program or its usefulness. When
you write, please indicate the version number of PC-VT which you are using.

Ciao,

Mark C. DiVecchio
9067 Hillery Drive
San Diego, CA 92126
619-566-6810
