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- åSystem 7 Notes
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- Disinfectant is fully compatible with System 7, including virtual memory,
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- 32 bit addressing, and file sharing.
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- Disinfectant is also compatible with the Power Macintosh.
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- Leave the Disinfectant INIT in the Extensions folder. Do not move the INIT
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- to the System Folder. The “Install Protection INIT” command installs the
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- INIT in the proper location in the Extensions folder. Do not move it.
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- If you try to repair an infected file, Disinfectant may tell you that the file
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- is busy and recommend that you either “restart using a locked Apple Disk
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- Tools disk and try again” or “rebuild the desktop.” Restarting using the
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- Disk Tools disk was discussed in the “Quick Start” section above.
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- Rebuilding the desktop is discussed in the “Problem Clinic” section below.
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- You should also be aware that System 7 is completely immune to the
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- “Desktop file” viruses (WDEF and CDEF). These viruses never activate,
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- spread, or cause any damage under System 7. Both hard disks and floppy
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- disks are immune to these viruses under System 7. Since the Disinfectant
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- INIT detects and blocks viruses when they first try to attack your
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- system, and since the Desktop file viruses never attack under System 7,
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- the Disinfectant INIT will not detect them under System 7.
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- System 7 hard drives, however, often contain an old System 6 format
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- Desktop file. If you restart using an infected System 6 startup floppy,
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- this file can and will become infected by WDEF or CDEF. The virus will
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- only be active, however, when you start up your Mac with System 6. The
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- proper way to protect against this problem is to install a copy of the
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- Disinfectant protection INIT in your System 6 System folder.
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- You should also be aware of a problem with System 7’s new file sharing
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- feature. If you share a folder and permit write access to it by granting
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- the “make changes” privilege with the new “Sharing” command, it is
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- possible for files in the shared folder to become infected by a virus over
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- the network, even if you have the Disinfectant INIT installed on your Mac.
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- The INIT will, however, prevent the virus from spreading to your
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- non-shared folders. It will also completely block any attempt by the virus
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- to execute its viral code on your Mac or cause any damage to your Mac.
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- We have always had the problem of viruses spreading over a network to
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- files in writable folders on dedicated AppleShare file servers. With
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- System 7’s file sharing, this has now also become a problem on personal
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- Macs.
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- Virus infection over the network is only one of many serious security
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- problems with writable shared folders. Writable shared folders are
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- inherently insecure, and no kind of anti-viral or other security software
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- can prevent damage to their contents. To minimize these problems, we
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- recommend that you limit write access to your shared folders to only
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- trusted individuals. Never grant write access to guests (“any user”). The
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- only way to eliminate the problems completely is to never grant the
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- “make changes” privilege to anyone except yourself.
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