Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

◄Note►  ◄Example►
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                                   VSAFE
 
Continuously monitors your computer for viruses and displays a warning when
it finds one. VSAFE is a memory-resident program that uses 22K of memory.
 
Do not use the VSAFE command when Windows is running.
 
Syntax
    VSAFE [/option[+ | -] ...] [/NE] [/NX] [/Ax | /Cx] [/N] [/D] [/U]
 
Switches
 
option
    Specifies how VSAFE monitors for viruses. Use a plus or minus sign (+ or
    -) after the number to turn an option on or off. The following list
    describes the options you can choose.
 
    1
        Warns of formatting that could completely erase the hard disk. The
        default setting is "on."
 
    2
        Warns of an attempt by a program to stay in memory. The default
        setting is "off."
 
    3
        Prevents programs from writing to disk. The default setting is
        "off."
 
    4
        Checks executable files that MS-DOS opens. The default setting is
        "on."
 
    5
        Checks all disks for boot sector viruses. The default setting is
        "on."
 
    6
        Warns of attempts to write to the boot sector or partition table of
        the hard disk. The default setting is "on."
 
    7
        Warns of attempts to write to the boot sector of a floppy disk. The
        default setting is "off."
    8
        Warns of attempts to modify executable files. The default setting is
        "off."
/NE
    Prevents VSafe from loading into expanded memory.
 
/NX
    Prevents VSafe from loading into extended memory.
 
/Ax
    Sets the hot key as ALT plus the key specified by x.
 
/Cx
    Sets the hot key as CTRL plus the key specified by x.
 
/N
    Allows VSAFE to monitor for possible viruses on network drives.
 
/D
    Turns off checksumming.
 
/U
    Removes VSAFE from memory.
 
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