vfdhelp.txt

一个虚拟软驱的动态链接库

  VFD.EXE Command Reference


====================
      GENERAL
====================

Usage:
  VFD.EXE [command [options...]]

Commands:
  INSTALL   Install the Virtual Floppy driver.
  REMOVE    Uninstall the Virtual Floppy driver.
  CONFIG    Configure the Virtual Floppy driver.
  START     Start the Virtual Floppy driver.
  STOP      Stop the Virtual Floppy driver.
  SHELL     Enable/disable the shell extension.
  OPEN      Open a Virtual Floppy image.
  CLOSE     Close a Virtual Floppy image.
  SAVE      Save the current image into a file.
  PROTECT   Enable/disable drive write protect.
  FORMAT    Format the current Virtual Floppy media.
  LINK      Assign a drive letter to a Virtual Floppy drive.
  ULINK     Remove a drive letter from a Virtual Floppy drive.
  STATUS    Print the current status.
  HELP | ?  Print usage help.
  VERSION   Print version information

If a command is not specified, the interactive console is started.
Type 'VFD.EXE HELP CONSOLE' for more information about the interactive
console.

All commands and options are case insensitive.

Shorter command name can be used as long as the command can be
distinguished uniquely: I for INSTALL, REM for REMOVE, etc. are
accepted, but ST is invalid because it is ambiguous.  You have
to type as much as STAR, STO or STAT in order to distinguish them.

'VFD.EXE command {/? | /h}' shows a brief hint about each command.


====================
      CONSOLE
====================

In the interactive console, you can use the following commands in
addition to regular VFD commands:

  CD | CHDIR
            Displays the name of or changes the current directory.
            Similar to the Windows CD/CHDIR command.

  <drive>:  Change the current directory to the root of the specified
            drive.  Similar to the Windows drive change command.

  DIR       Executes the Windows DIR command.
            All options for the Windows DIR command are available.

  ATTRIB    Executes the Windows ATTRIB command.
            All options for the Windows ATTRIB command are available.

  EXIT | QUIT | BYE | <Ctrl+C>
            Quits the VFD interactive console.

A command typed with a leading '.'(period) is executed by the Windows
command processor (cmd.exe).

  e.g.) .FORMAT [options ...]
          Executes the Windows format.exe.  All options are passed to
          the format.exe.

        FORMAT [options ...]
          Executes the VFD 'FORMAT' command.

To execute an external command with spaces in its name, put the
'.' (period) outside the quoteation.

  e.g.) ."C:\Program Files\My App\My Program.exe" [options ...]

DIR and ATTRIB Windows commands are recognized without a period,
for they are used very frequently.

Commands to affect current directory and environment variable have
effects only inside the Windows command processor.  You can execute
them but they have no effect on the VFD console.

  .CD .CHDIR .<drive>: to change the current directory
  .PUSHD .POPD
  .PATH to change the search path
  .PROMPT
  .SET to change the value of an environment variable


====================
      INSTALL
====================

Install the Virtual Floppy driver.

SYNTAX:
  VFD.EXE INSTALL [driver] [/AUTO | /A]

OPTIONS:
  driver    Specifies the path to the Virtual Floppy driver file.
            Default is VFD.SYS in the same directory as the VFD
            console program (Note: *NOT* current directory).

  /AUTO     Configures the driver to start at the system startup.
  /A        (Note: *NOT* to start the driver after installation.)
            By default the driver has to be started manually.

Administrator rights are required to install a devide driver.

Device drivers cannot be installed from network drives.
Make sure to place VFD.SYS on a local drive.

It is advised to install the driver with the /AUTO option if the
Virtual Floppy drive is going to be used by users other than
Administrators and Power Users, who don't have enough rights to
start device drivers.


====================
       REMOVE
====================

Uninstall the Virtual Floppy driver.

SYNTAX:
  VFD.EXE REMOVE [/FORCE | /F | /QUIT | /Q]

OPTIONS:
  /FORCE    Suppress prompting and forces the remove operation when
  /F        the driver cannot be stopped.

  /QUIT     Suppress prompting and quits the remove operation when
  /Q        the driver cannot be stopped.

Closes all images and stops the driver if necessary, then removes the
Virtual Floppy driver entries from the system registry.
This command does not delete the driver file from the local disk.

There are cases, due to the condition of the system, when
uninstallation does not complete immediately and restarting of the
system is required.  In such cases you may not be able to install the
Virtual Floppy driver again until the system is restarted and
uninstallation process is complete.

Administrator rights are required to uninstall a device driver.


====================
       CONFIG
====================

Configure the Virtual Floppy driver start method.

SYNTAX:
  VFD.EXE CONFIG {/AUTO | /A | /MANUAL | /M}

OPTIONS:
  /AUTO     Configures the driver to start at the system startup.
  /A

  /MANUAL   Configures the driver to start on demand.
  /M

The change takes effect the next system start up.
Administrator rights are required to configure a devide driver.


====================
       START
====================

Start the Virtual Floppy driver.

SYNTAX:
  VFD.EXE START

OPTIONS:
  NONE

If the driver is not installed, this command attempts to install it
with thedefault options.

At least Power User rights are required to start a device driver.


====================
        STOP
====================

Stop the Virtual Floppy driver

SYNTAX:
  VFD.EXE STOP [/FORCE | /F | /QUIT | /Q]

OPTIONS:
  /FORCE    Suppress prompting and forces the stop operation when any
  /F        of the drives are in use and cannot be closed.

  /QUIT     Suppress prompting and quits the stop operation when any
  /Q        of the drives are in use and cannot be closed.

This command closes all images before stopping the driver.
An image cannot be closed if the virtual drive is used by any other
programs.  Forcing the stop operation with a drive in use may leave
the driver in stop pending state.  In such cases the driver cannot be
restarted until all programs stop using the drive and the driver is
properly unloaded.

At least Power User rights are required to stop a device driver.


====================
       SHELL
====================

Enable / disable the Virtual Floppy drive shell extension.

SYNTAX:
  VFD.EXE SHELL [/ON | /OFF]

OPTIONS:
  /ON       Enables the shell extension.

  /OFF      Disables the shell extension.

If an option is not specified, this command prints the current state
of the shell extension.


====================
        OPEN
====================

Open a Virtual Floppy image.

SYNTAX:
  VFD.EXE OPEN [drive:] [file] [/NEW] [/RAM] [/P | /W]
        [/size] [/media] [/F | /FORCE | /Q | /QUIT]

OPTIONS:
  drive:    Specifies a target Virtual Floppy drive, either by a drive
            number or a drive letter, such as "0:", "1:", "B:", "X:".
            The trailing ':' is required.
            The drive 0 is assumed if not specified.

  file      Specifies a Virtual Floppy image file to open.
            An empty RAM disk is created if not specified.

  /NEW      Creates a new image file.
            Ignored if a file is not specified.

  /RAM      RAM mode - mounts an on-memory copy of the image, instead
            of directly mounting the image file.
            Changes made to the virtual media are lost when the image
            is closed, unless the image is explicitly saved to a file
            with the 'SAVE' command.
            Ignored if a file is not specified.

  /P        Opens the image as a write protected media.
            Write protection state can be chenged later with the
            'PROTECT' command.

  /W        Opens the image as a writable media.
            Write protection state can be chenged later with the
            'PROTECT' command.

  /size     Specifies a media size.  Acceptable options are:

              /160 (160KB)    /820 (820KB)
              /180 (180KB)    /120 or /1.20 (1.20MB)
              /320 (320KB)    /144 or /1.44 (1.44MB)
              /360 (360KB)    /168 or /1.68 (1.68MB DMF)
              /640 (640KB)    /172 or /1.72 (1.72MB DMF)
              /720 (720KB)    /288 or /2.88 (2.88MB)

  /5        Specifies a 5.25 inch media.  Takes effect only with
  /525      640KB, 720KB and 1.2MB media and otherwise ignored.
  /5.25     160KB, 180KB, 320KB and 360KB media are always 5.25".
            820KB, 1.44MB, 1.68MB, 1.72MB and 2.88MB media are always
            3.5".

  /FORCE    Suppress prompring on minor conflicts and/or omission of
  /F        necessary parameters and continues the operation as best
            as possible, employing default values if necessary.
            See below for details.

  /QUIT     Suppress prompring on minor conflicts and/or omission of
  /Q        necessary parameters and quits the operation on the first
            such occasion.
            See below for details.

If the target drive does not have a drive letter, this command also
assigns a local drive letter (see 'VFD.EXE HELP LINK') using the first