“make changes” privilege to anyone except yourself.

only way to eliminate the problems completely is to never grant the

trusted individuals. Never grant write access to guests (“any user”). The

recommend that you limit write access to your shared folders to only

can prevent damage to their contents. To minimize these problems, we

inherently insecure, and no kind of anti-viral or other security software

problems with writable shared folders. Writable shared folders are

Virus infection over the network is only one of many serious security



Macs.

System 7’s file sharing, this has now also become a problem on personal

files in writable folders on dedicated AppleShare file servers. With

We have always had the problem of viruses spreading over a network to



damage to your Mac.

attempt by the virus to execute its viral code on your Mac or cause any

spreading to your non-shared folders. It will also completely block any

Mac. The VirusScan Extension will, however, prevent the virus from

the network, even if you have the VirusScan Extension installed on your

possible for files in the shared folder to become infected by a virus over

the “make changes” privilege with the new “Sharing” command, it is

feature. If you share a folder and permit write access to it by granting

You should also be aware of a problem with System 7’s file sharing



VirusScan Extension in your System 6 System folder.

proper way to protect against this problem is to install a copy of the

only be active, however, when you start up your Mac with System 6. The

this file can and will become infected by WDEF or CDEF. The virus will

Desktop file. If you restart using an infected System 6 startup floppy,

System 7 hard drives, however, often contain an old System 6 format



the VirusScan Extension will not detect them under System 7.

system, and since the Desktop file viruses never attack under System 7,

Extension detects and blocks viruses when they first try to attack your

disks are immune to these viruses under System 7. Since the VirusScan

spread, or cause any damage under System 7. Both hard disks and floppy

“Desktop file” viruses (WDEF and CDEF). These viruses never activate,

You should also be aware that System 7 is completely immune to the



discussed in the “Problem Clinic” section below.

discussed in the “Quick Start” section above. Rebuilding the desktop is

Restarting using your “Virus Tools” or emergency startup disk was

emergency startup disk and try again or “rebuild the desktop.”

busy and recommend that you either restart using your “Virus Tools” or

If you try to repair an infected file, VirusScan may tell you that the file is



location in the Extensions folder. Do not move it.

Extension” command installs the VirusScan Extension in the proper

VirusScan Extension to the System Folder. The “Install VirusScan

Leave the VirusScan Extension in the Extensions folder. Do not move the



VirusScan is also compatible with the Power Macintosh.



32 bit addressing, and file sharing.

VirusScan is fully compatible with System 7, including virtual memory,








åSystem 7 Notes



=




=