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LAN HIJACK
KDS Software.
2125 W. Coronet Ave.
Anaheim, CA 92801
(714) 774-2406
Trial Version
----------------------------------------------------------------------------
This is a TRIAL VERSION of LAN HIJACK. Several features are not
supported in the TRIAL version of LAN HIJACK, including graphics
modes and run time limits. You must order LAN HIJACK for full use of
this software. See the ORDER.DOC file.
As this program needs no installation, the HOT KEY for this LAN HIJACK
is ALT-RIGHT SHIFT, and the HELP HOT KEY is CTRL-RIGHT SHIFT.
Copyright 1989,90,91 by KDS. All rights reserved.
----------------------------------------------------------------------------
Copyright 1989,90,91 by KDS. All rights reserved. No part of
this publication or software may be reproduced, transmitted,
transcribed, stored in a retrieval system, or translated into any
language or computer language, in any form by any means,
electronic, mechanical, magnetic, optical, chemical, manual or
otherwise, without the express written consent of KDS.
This version of LAN HIJACK is licensed for use on one network site
only. You may make backup copies, but may not by law use the
software, or a copy of it at more than one network site at a time.
Disclaimer
----------------------------------------------------------------------------
KDS make no representations or warranties with respect to the
contents hereof and specifically disclaim any implied warranties of
merchantability or fitness for any particular purpose.Further, KDS
reserve the right to revise this publication and software, and to
make changes form time to time in the content hereof without
obligation of KDS to notify any person of such revisions or
changes.
Trademarks
----------------------------------------------------------------------------
"LAN HIJACK" is a trademark of KDS. Additional products referenced
throughout this manual are registered trademarks of their
respective manufacturers.
LAN HIJACK
KDS Software.
2125 W. Coronet Ave.
Anaheim, CA 92801
(714) 774-2406
Introduction
----------------------------------------------------------------------------
LAN HIJACK you can ....
Hijack work stations to provide instant support for network users.
You have full access to their screen and keyboard to step them
through any problem.
Hijack modems, FAX boards, printers, CD ROMS and tape backups
attached to other work stations.
Hold network-wide computer conferences and training seminars.
Hijack any work station and run any program for real
multiprocessor multitasking!
Example Scenarios
----------------------------------------------------------------------------
LAN HIJACK for Network Support
Jack's in his new spread sheet program and can't remember how to
generate a 3D bar graph. So he presses the LAN HIJACK HELP HOT
KEY. Jill, the company spread sheet guru, is writing up a letter
in her word processor when her computer sounds the LAN HIJACK help
alarm. She presses the LAN HIJACK HOT KEY and then the F2 key,
and instantly she is in jack's spreadsheet. With a few keystrokes
she whips out the graph, then HOT KEYS right back to her letter.
LAN HIJACK for Sharing Hardware.
Jill needs to FAX out her letter. But the FAX board is in the
computer downs stairs. So she presses the LAN HIJACK HOT KEY and
"hijack's" that station. Then runs up the FAX program and sends
the FAX. Then HOT KEYS right back to her word processor.
LAN HIJACK for Training Seminars
Jill needs to train her staff on their new accounts receivable
software. So she hosts a LAN HIJACK conference. From her station
she steps through the tricky parts of entering a receivable. And
all of her staff can watch her from their work stations.
LAN HIJACK for MultiProcessor MultiTasking
Jack has to print out several reports before he can leave for the
night. Instead of waiting for his station to print the reports
one at a time, he "hijacks" another station and starts it printing
one report. Then "hijacks" another station to print another
report. And on and on, using all available stations on the
network to work on his job. All at the same time! With LAN HIJACK
the full power of your network is available at your station.
LAN HIJACK
KDS Software.
2125 W. Coronet Ave.
Anaheim, CA 92801
(714) 774-2406
Key Features
----------------------------------------------------------------------------
Wide Area Networks
On your wide area network you can hijack a station next door or
across the country!
Conferencing
You may hold network-wide conferences.
Security Controls
Novell's security system determines which users may "hijack" a
station. And which stations a user may "hijack". All security is
assigned using Novell's SYSCON utility.
Easy to Use
Selection and control of another station is intuitive and simple
to learn.
Keyboard Lock Out
When you "hijack" a station you may lock it's keyboard, giving you
exclusive use of that station.
VGA and Hercules Graphics Support
Supports all VGA and Hercules Graphics modes. And you can
"hijack" stations with different display adapters.
Help Alarm
Users can call for assistance by pressing the HELP HOT KEY.
Memory Resident
Both sides of LAN HIJACK are memory resident, using just 5 kbytes
in the remote station.
Removable
The memory resident portions of LAN HIJACK can be removed from
memory without rebooting.
LAN HIJACK
KDS Software.
2125 W. Coronet Ave.
Anaheim, CA 92801
(714) 774-2406
The LAN HIJACK Programs
----------------------------------------------------------------------------
LAN HIJACK uses two memory resident programs, LH.EXE and LHR.EXE.
When you run either program from the DOS commandline they are
"loaded" and return the DOS prompt immediately. Once loaded, to
activate the program you must press a HOT KEY combination. You
select the HOT KEY combinations when LAN HIJACK is installed.
When LHR.EXE is loaded on a station, then the station can be
"hijacked" and controlled by another station. However, the
station can not "hijack" other stations.
When LH.EXE is loaded on a station, then the station can "hijack"
and control other stations. However, the station can not be
"hijacked" by another station.
When both LHR.EXE and LH.EXE are loaded on the same station, then
the station may "hijack" other stations and the station can be
"hijacked" by other stations.
The LH.EXE and LHR.EXE programs use overlays for the type of
hardware they are loaded on. The overlays are only accessed
during loading. Upon loading these overlays must be in the
current directory, or in a directory in the system's path.
The overlays used by LH.EXE are:
LHMDA.OVL Monochrome Adapter
LHMGA.OVL Monochrome Graphics Adapter (Hercules)
LHCGA.OVL Color Graphics Adapter
LHEGA.OVL Enhanced Graphics Adapter
LHMEG.OVL Monochrome Enhanced Graphics Adapter
LHVGA.OVL Video Graphics Array adapter.
The overlays used by LHR.EXE are:
LHRMDA.OVL Monochrome Adapter
LHRMGA.OVL Monochrome Graphics Adapter (Hercules)
LHRCGA.OVL Color Graphics Adapter
LHREGA.OVL Enhanced Graphics Adapter
LHRMEG.OVL Monochrome Enhanced Graphics Adapter
LHRVGA.OVL Video Graphics Array adapter.
Other overlays are available from KDS.
Requirements
----------------------------------------------------------------------------
A Novell Netware network with PC/AT/PS2 work stations or close
compatibles. And DOS version 3.0 or higher.
LAN HIJACK
KDS Software.
2125 W. Coronet Ave.
Anaheim, CA 92801
(714) 774-2406
Installation
----------------------------------------------------------------------------
The LAN HIJACK install program will configure LH.EXE and LHR.EXE
programs and copy them to a selected destination drive. Also
installation will create a user group, called LAN_HIJACK on your
network.
To install LAN HIJACK complete these steps:
1. Login to your network as SUPERVISOR.
2. Insert the LAN HIJACK diskette in any drive.
3. Complete the install program. For example if the LAN HIJACK
diskette is in drive A, from the DOS prompt type:
A:INSTALL
4. Run Novell's SYSCON to add LAN HIJACK users to the LAN_HIJACK
group. Only add users who will be permitted to "hijack"
other stations. For assistance in using SYSCON refer to your
Novell Netware manuals.
5. For each work station that will be "hijacked", copy the
LHR.EXE and the appropriate LHRXXX.OVL file program from the
destination drive to each work station's boot diskette. And
add the command LHR to the AUTOEXEC.BAT file. LHR is a
terminate and stay resident program, TSR, and should be
loaded after all other TSR programs. For diskless work
stations, add the LHR.EXE program and the appropriate
LHRXXX.OVL file, and add a LHR commandline in the
AUTOEXEC.BAT file, to each work station's boot file (see your
Novell manuals).
6. For each work station that will "hijack" remote stations,
copy the LH.EXE program and the appropriate LHXXX.OVL file
from the destination drive to each work station's boot
diskette. And add the command LH to the AUTOEXEC.BAT file.
LH is a terminate and stay resident program, a TSR, and
should be loaded after all other TSR programs. If a work
station is to have both LHR and LH loaded, then LHR must be
loaded first.
7. Reboot each work station to load the LAN HIJACK programs.
LAN HIJACK is now ready to use on your network.
LAN HIJACK
KDS Software.
2125 W. Coronet Ave.
Anaheim, CA 92801
(714) 774-2406
Using LAN HIJACK
----------------------------------------------------------------------------
LAN HIJACK can be used on any station that has loaded LH.EXE, or
by running LH from the DOS prompt. And the user currently logged
in at the station must be a member of the LAN_HIJACK group.
To invoke LAN HIJACK when loaded, press and hold the hot key
combination you selected during installation until your computer
beeps twice. Or to run LAN HIJACK from a DOS prompt, run LH
with the -N ( Non-Resident ) option. In a moment the LAN HIJACK
screen will be displayed.
Selecting A Remote Station
At the LAN HIJACK screen you may press either the up or down arrow
keys to select a remote station. If the selected station has a
user logged in, the user's login name will be displayed.
Or you may browse through your network with the left and right
arrow keys to select a remote station. Here however each remote
station's display will be shown on your screen.
Once you have selected a remote station you can "hijack it", that
is connect to it and take control, by pressing the ENTER key. You
can now use the station.
To return to the LAN HIJACK screen press the LAN HIJACK HOT KEY.
You may select another station or exit LAN HIJACK and return to
your station.
The Function Keys
While you are not connected to a remote station, you may use the
following function keys.
F1 Returns you to the LAN HIJACK screen.
F2 Select a station that requested help.
F3 Lock the selected station's keyboard.
F4 Unlock the selected station's keyboard.
F5 Turns keyboard intercept on.
F6 Host a Conference from your station.
F7 Join a Conference.
F8 Send a message to the selected station.
F10 Exits LAN HIJACK.
Keyboard Intercept
Some programs take control of the computer's keyboard so that
remote key strokes will not be received. Invoking keyboard
intercept may remedy this problem. Intercept is turned off
automatically when returning to the LAN HIJACK screen.
LAN HIJACK
KDS Software.
2125 W. Coronet Ave.
Anaheim, CA 92801
(714) 774-2406
Conferencing
You may share your display with others on your network via
conferencing. To host a conference, press the F6 key from the LAN
HIJACK screen. You will then exit LAN HIJACK and your display
will be available to all stations that join the conference. Any
other station on the network can join the conference by pressing
the F7 key from their LAN HIJACK screen. When joining a
conference there are no station restrictions. To end a conference
just press the LAN HIJACK HOT KEY combination. Note to host a
conference you must have both LH and LHR loaded.
Display Compatibility
When LAN HIJACK is used between two computers with different
display adapters, LAN HIJACK makes a best attempt to translate the
display. There are some combinations of display adapters and
modes that are not translatable. In these cases LAN HIJACK will
display the message "Display mode Not Supported." You still have
control of the station's keyboard but can not see the screen.
User Restrictions
To use LAN HIJACK you must be a member of the group LAN_HIJACK. A
user who is NOT a member of the LAN_HIJACK group can NOT activate
LAN HIJACK and can NOT "hijack" any stations. To add or change
users to the LAN_HIJACK group use SYSCON ( refer to your Novell
manuals ).
Station Restrictions
LAN HIJACK adheres to Novell's stations restrictions for each
user. So that a user can only "hijack" a work station if the user
has login privileges to that station. To change station
restrictions use SYSCON ( refer to your Novell manuals ).
Help Alarm
Stations with LHR loaded can call for assistance by pressing the
HELP HOT KEY. Each station ( on the local network ) with LH
loaded will beep twice. The LH user can then press the LAN HIJACK
HOT KEY and then the F2 key to connect to the calling station.
Program Removal
You may remove both LAN HIJACK resident programs with the -r
commandline option. For example, at the commandline type either:
LH -r
LHR -r
LAN HIJACK
KDS Software.
2125 W. Coronet Ave.
Anaheim, CA 92801
(714) 774-2406
Trouble Shooting
----------------------------------------------------------------------------
This trouble shooting appendix explains some commonly encountered
problems and their solutions.
EMSNETx Users
You should add the following option to your SHELL.CFG file:
ENTRY STACK SIZE = 40
Refer to your Netware manuals.
Error Message : DOS 3.0 or higher required.
You must have DOS 3.0 or higher to use LAN HIJACK.
Error Message : Invalid configuration.
You MUST use the install program to install LAN HIJACK on your
system. Also LH.EXE and LHR.EXE can not be flagged as execute
only, you must have read access to these program files.
Error Message : Not registered for this server.
Your default server is not registered for LAN HIJACK.
Error Message : No IPX sockets available.
Configure your IPX shell for more sockets. (See Netware Manuals.)
Error Message : Unrecognized Display Adapter.
LAN HIJACK can not identify your display adapter. Over ride the
automatic identification with the -O commandline option. For
example, to load LH with the Monochrome Graphics Adapter, use the
following commandline:
LH -Olhmga.ovl
Error Message : Can not load overlay.
LAN HIJACK can not locate the appropriate overlay file. The
overlay files must be in the current directory or in a directory
in your system's path. You can not rename the overlay files.
Error Message : Shell not installed.
Novell's IPX and NETx shells have not been installed at the
station. Run IPX.COM and NETx.COM first.
LAN HIJACK
KDS Software.
2125 W. Coronet Ave.
Anaheim, CA 92801
(714) 774-2406
Error Message : LH is already loaded.
LHR.EXE must be loaded before LH.EXE. Remove LH by entering:
LH -r
Then enter the following commandlines :
LHR
LH
Error Message : Already Loaded
LH or LHR are already loaded and are ready to use.
No response with the LAN HIJACK HOT KEY
There are several causes and remedies for this problem.
LH has not been loaded. Load LH.
You are not using the HOT KEY you assigned when you installed LAN
HIJACK.
You are not holding the HOT KEY combination keys down long enough.
Press and hold the HOT KEY combination longer.
You are not logged in. Log in.
You are not a member of the LAN_HIJACK group. Use SYSCON to add
membership to the LAN_HIJACK group.
The program currently running has taken control of the keyboard.
Try exiting the program to DOS and try again.
Your station has been "hijacked" by another station.
Your keyboard has been locked by another station.
Only beeps when pressing the HOT KEY
There are several causes and remedies for this problem.
You are not logged in. Log in.
Your current display mode is not supported. Try exiting to DOS
and try again.
Your default disk drive and directory can not be written to. Try
changing drive or directory, and try again.
You are not a member of the LAN_HIJACK group. Use SYSCON to add
membership to the LAN_HIJACK group.
LAN HIJACK
KDS Software.
2125 W. Coronet Ave.
Anaheim, CA 92801
(714) 774-2406
A Remote node is not on the LAN HIJACK screen.
A remote node will not be shown on the LAN HIJACK screen for the
following reasons.
LHR has not been loaded at the station. Load LHR on the
station first.
The station is currently "hijacked" by another station. Wait
until it is available.
Do to Novell's station restrictions you do not have access to the
station. Use SYSCON to reassign your station restrictions.
Message : Display Mode Not Supported.
This message occurs if your station is not capable of displaying
the "hijacked" station's display. At this point you still have
control of the keyboard but are not able to see the remote's
display screen. You may wish to upgrade your display hardware to
match that of the remote station.
Remote Station does not respond to Keystrokes
Here you may need to use Keyboard Intercept. Press the LAN HIJACK
HOT KEY to return to the LAN HIJACK screen. Then press F5 to turn
on Keyboard Intercept. Then re-select the station.
Display colors are unacceptable.
If the LH station is receiving unacceptable display coloring, from
the LAN HIJACK screen press the SHIFT-F10 keys, then reconnect to
the station. The LH station will then reject the LHR station's
display colors.