infections.

major problem. The VirusScan application does detect these kinds of

system. These non-contagious infections are harmless, so this is not a

but not contagious, since these kinds of infections never attack the

The VirusScan Extension will not detect files which are partially infected



Extension so small and efficient.

each time they are opened. This strategy is what makes the VirusScan

each time they are inserted into a disk drive and it does not scan files

attack. Unlike some other virus protection INITs, it does not scan floppies

The VirusScan Extension detects and blocks viruses at their initial point of



any way with installers.

There are no known cases where the VirusScan Extension interferes in

necessary to remove the VirusScan Extension when installing software.

Contrary to the instructions found in many software manuals, it is not



Macintosh.

anywhere else outside of the System folder). Then restart your

System 6) and drag the VirusScan Extension icon to the trash (or

your Extensions folder (under System 7) or your System folder (under

If you wish to remove the VirusScan Extension for some reason, open



VirusScan Extension icon appears second.

The Communications Toolbox icon may appear first, in which case the

to this is under System 6 with Apple’s Communications Toolbox installed.

VirusScan Extension icons which appear when you restart. One exception

The VirusScan Extension icon normally appears first in the row of






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normal icon with a large “X” superimposed.)

beep ten times and it will draw a special error version of the icon (the

VirusScan Extension cannot load properly, the VirusScan Extension will

every time you restart your Macintosh. If an error occurs and the

The VirusScan Extension icon should appear at the bottom of your screen





that it is not infected, so it shouldn’t cause any problems.

worry if the other extension loads first. You have already made certain

is named, it may load before or after the VirusScan Extension. Don’t

virus or any other virus. Then install it. Depending on how the extension

VirusScan application to make certain it is not infected by the INIT 1984

should be loaded first. Before installing such an extension, scan it with the

A number of other popular extensions also have the requirement that they



during startup.

Extension will not be able to detect or block the virus when it attacks

earlier extension is infected by the INIT 1984 virus, then the VirusScan

startup time. If the VirusScan Extension does not load first, and if some

detect and block the INIT 1984 virus, which spreads from INIT to INIT at

The reason the VirusScan Extension should be loaded first is to properly



not rename the VirusScan Extension.

the Control Panels folder. To avoid problems, we recommend that you do

in the Extensions folder. Do not move it to the System folder proper or to

folder. With System 7, be very careful to leave the VirusScan Extension

first in alphabetical order in your Extensions folder or your System

the VirusScan Extension, make certain that you rename it so that it comes

important: the VirusScan Extension should be loaded first! If you rename

first extension loaded when you start up your Macintosh. This is

The special symbol is present to force the VirusScan Extension to be the



standard file dialogs and in some other contexts, it appears as a box.

character. This special character does not appear in Finder windows. In

The name of the VirusScan Extension begins with a special invisible



as usual.

damage, but the non-viral part of the infected VirusScan Extension runs

sequence. The virus is neutralized and does not spread or cause any

beeps ten times, and an alert is presented at the end of the startup

virus, when the virus attacks during startup, the VirusScan Extension

If you have an VirusScan Extension file which is infected by the INIT 1984



the stack.

spread. You should use the VirusScan application to remove the virus from

neutralizes the virus. You can safely use the stack; the virus will not

VirusScan Extension beeps ten times, presents an alert, and temporarily

If you use a HyperCard stack which is infected by the MacMag virus, the



the Desktop file is usually easier.

either rebuild the Desktop file or use the VirusScan application. Rebuilding

the virus will not spread. To remove the virus from the disk, you can

alert, and temporarily neutralizes the virus. You can safely use the disk;

by the CDEF virus, the VirusScan Extension beeps ten times, presents an

With System 6, if you use a disk which is infected by the WDEF virus or



remove them. To remove a virus, you must use the VirusScan application.

The VirusScan Extension only detects and blocks viruses; it does not






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run MacWrite:

infected by the nVIR virus, the following alert appears when you try to

and presents an alert. For example, if the application “MacWrite” is

viruses, the VirusScan Extension beeps ten times, quits the application,

If you run an application which is infected by one of the known Mac





installer applications, or other system software.

other anti-viral applications, or with programming environments,

Extension does not interfere with the normal operation of VirusScan or

disks (e.g., in university labs with floppy-only Macs). The VirusScan

of your Mac. It is very small and can easily be used on floppy startup

to make a decision. It should have no noticeable effect on the performance

all, so it cannot be configured. The VirusScan Extension will never ask you

does not need to be configured. In fact, it has no control panel interface at

The VirusScan Extension is simple, small, efficient, and unobtrusive. It



choosing.

to save a copy of the VirusScan Extension to any location of your

Use the “Save VirusScan Extension” command in the “Protection” menu



Extension.

System 6). You must restart your Macintosh to activate the VirusScan

folder (under System 7) or in your currently active System folder (under

to install the VirusScan Extension in your currently active Extensions

Use the “Install VirusScan Extension” command in the “Protection” menu



version of VirusScan to recognize it.

unknown viruses! If a new virus appears, we will have to release a new

WARNING: The VirusScan Extension will not protect your system against



Macintosh system viruses.

properly installed, it will protect your system against all of the known

The VirusScan application contains the VirusScan Extension. When



Extension.

To protect your system against infection, you must install the VirusScan

infection. It will only locate and repair previously infected files and disks.

The VirusScan application by itself will not protect your system against








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