Corridor 7 - Alien Invasion (1994)
This is Corridor 7: Alien Invasion, a game that was released for MS-DOS computers in 1994.
This game features music, by means of CD-tracks (redbook audio), so thus the .CUE file will be needed in order to hear them.
Note for DOSBox users: You will need to imgmount the .CUE file as the letter D:/, or else the CD-tracks will not play.
The readme file (README.1ST) runs as thus:
CORRIDOR 7 ADDENDUM
The following information is provided as an addendum to the
Corridor 7 Alien Invasion Manual. A few things may have
changed or may have been added since the manual was sent to
-- Changes ------------------------------------------------
1. Proximity mines now appear as RED blinking blips on your
map instead of BLUE as stated in the manual. This was
done during final beta testing because we found it too
difficult to distinguish between dropped mines and the
2. Securing the floor for the different difficulty levels
requires kills of certain percentages as follows:
DIFFICULTY KILLS REQUIRED
2nd Lieutenant 75%
On Corporal and 2nd Lieutenant levels a message will
appear (and be heard on SoundBlasters & compatibles)
when the appropriate percentage of aliens have been
killed stating "Elevator Clearance Acquired". This means
that at any time you may go to the elevator and proceed
to the next floor.
-- Additions ----------------------------------------------
Alternate elevators can be found on some floors (usually
guarded by boss aliens). These elevators will take you to
"bonus levels". You do not have to secure the floor on a
bonus level to complete the game. Bonus levels are for
points only. You enter the bonus level with whatever items
you are currently carrying and leave the bonus level with
the same items (including health and ammo). You cannot die
on bonus levels - instead, you are awarded points for kills
and shooting accuracy, then taken to the next floor. You
play the bonus level until your health has expired or until
you return to the elevator.
** NOTICE **
It may be a good idea to save your game when you are taken
to a bonus level. This way, you can replay the bonus level
as often as you wish until you kill all aliens and gain as
many points as possible.
-- TROUBLE SHOOTING ---------------------------------------
If you are experiencing difficulties with digitized sound
effects such as sporadic playback, distortion or choppiness
there are a few things you can try that may alleviate the
problem before you call for technical support. The problems
mentioned above are most often the result of an interrupt
conflict. The playback of digitized sounds in applications
using DMA (Direct Memory Access), such as the case with
SoundBlaster and compatibles, relies heavily on your chosen
interrupt to keep the actual sound data moving from memory
to the DAC (Digital to Analog Converter) of the sound card.
The most commonly used interrupts for sound cards are 5 and
7. Corridor 7 supports interrupts 2, 3, 5 and 7. A printer
will also often use one of these interrupts. A sound card
and printer that share common interrupts will in many cases
cause digitized playback problems. Other specialized add-in
cards such as network or scanner cards, may also be using a
system interrupt. In such a case using a DOS boot disk or
temporarily commenting out the loading of specialized
drivers from your "autoexec.bat" and "config.sys" files can
alleviate the problem. The sound cards' interrupt should
be reserved SOLELY FOR ITS USE. If possible use interrupt 7
(the original SoundBlaster default) for your sound card. If
using a Pro-Audio Spectrum card in SoundBlaster emulation
mode, once again set the SoundBlaster interrupt to 7 if
possible (there should be a hardware jumper on the card for
the SoundBlaster interrupt), and make sure that the actual
PAS interrupt and the SB interrupt are not the same (this
can again result in a conflict). It is possible that you
may not have access to the faders in the game that control
music and digitized volume. This is because these functions
were designed around the mixer chip used in SoundBlaster 16
and SoundBlaster Pro cards. If you do not have one of these
sound cards you will not be able to use the audio-mixer
section. This problem may be resolved soon as we await more
comprehensive standards in regards to sound card functions
C O R R I D O R 7 C D
INSTALLING FOR NETWORK PLAY:
To install Corridor 7 to be played on an IPX compatible network
choose the "network" type from the INSTALL program. It is best
to install a copy on each of the workstations that will be part
of the slaughter. The reason being that if you install the files
directly onto a network drive and if others are moving around in
the game it will take longer for a new player to join in because
of all the IPX activity happening.
COMMAND LINE OPTIONS
There are utility command line options available for your
convenience. They are as follows and should be added to the
DOS command line when you type CORR7.
- this option tells Corridor 7 to look for
graphics and sound files on your local drive
and not on the CD drive.
- this option will allow you to execute the
Corridor 7 game without the CD. NOTE: You can
only play network games without the CD. Other
levels of play will ask you to insert the CD in
the player before proceeding.
- this option will prevent the temporary files
from being deleted when you exit the game.
For IPX (network) multiplaybility install using the "network" type
from within the INSTALL program.
For MODEM multiplayability, enter the game as usual except pick
"MODEM" instead of "CORPORAL" or "CAPTAIN". After configuring
your hardware setup (ie. COM port, IRQ, etc.) you will be thrown
into the game. At this point your modem is set to auto-answer
and will await a call from your opponents modem. The following
commands are available from within the game during modem play:
ALT-A - Answer the line manually. Use this if someone
dials you up and your modem doesn't answer auto-
ALT-B - Busy-out the phone line. Use this if you don't
want to accept any calls yet. ALT-H will hang-up
ALT-D - Dial a number. Use the UP/DOWN arrow keys
to highlight the appropriate option. To enter
a number, highlight the phone number box and
press ENTER. Type in the number and press ENTER
ALT-H - Hangup the modem.
ALT-I - Re-initialize the modem with the current init
ALT-R - Reset the modem (this sends an ATZ to the modem).
For direct SERIAL play, use a standard null-modem cable between
the computers and select the appropriate baud rates (they should
be the same on both machines).
To configure the game to use CD music:
a) Use the FULL INSTALL option.
b) Select CD Music from the music options menu in
the SETUP program.
c) CD Controls will then be available from the "Adjust Audio"
menu off the games Main Menu screen. They operate like
standard "PLAY" "SKIP" and "STOP" buttons on a CD player.
Look for more interaction between the game and CD score
in our next release "Operation Body Count".
d) The CD controls can also be accessed by "Hot Keys" from
inside the game (these come in handy if your sound cards
mixing functions aren't supported - you do not have acces
to the "Adjust Audio" menu). They are as follows:
ALT-P : Play.
ALT-F : Skip (advances to the next track).
ALT-S : Stop.
CD and Line-In mixer options are included in case you do not have an
internal audio connection from your CDROM drive to your sound card.
In this situation a stereo mini-plug cable (or an RCA to mini,
depending on your CD drive) can be used to run from an external
CDROM drive to the Line-In input of the sound card. Use the
appropriate fader on the Adjust Audio screen to set pleasant listening
If the game seems to be operating abnormally or doesn't load up at
all, try adding "noems" and "noxms" to the command line when loading
up the game.
For example: C:\CORR7CD> CORR7 NOEMS NOXMS
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