MS-FLASH.SYS

A device driver that installs the Microsoft Flash File System on your
computer. The Flash File System is designed for use with Flash memory
cards.

If you use a Flash memory card, you must use the Microsoft Flash File
System to access it. If you do not use a Flash memory card, do not
install this device driver.

Syntax

device=[drive:][path]ms-flash.sys [/nocomp]
[/cleanup=n] [/erase=n] [/cache=e|x|n]

Parameters

[drive:][path]

Specifies the location of the MS-FLASH.SYS file.

Switches

/nocomp

Specifies that files you save on
a Flash memory card should not be compressed. Use this switch if you
load the DBLFLASH.EXE device driver to start compression, but
do not want files on your Flash drive to be compressed. Only those
files saved after you first use the /nocomp switch will be uncompressed.

, /cleanup=n

Specifies how frequently deleted space will
be reclaimed. When you delete files from your Flash memory card,
the space that becomes free is not immediately available for use.
Periodically, the Flash File System searches the Flash memory card
to identify these areas and makes the space available. Valid values
for n range from 1 (least frequently) to 10 (most frequently).
The default value is 5. Full memory cards tend to work more efficiently
with a higher number, and empty memory cards tend to work more efficiently
with a lower number.

, /erase=n

Specifies the maximum difference of erase counts
between two adjacent blocks on a Flash memory card. Valid values for
n range from 250 to 2000. The default value of 500 is recommended.

, /cache=e|x|n]

Specifies whether the Flash File
System cache should be created in expanded memory (e), extended
memory (x), or not at all (n). The
default value is e. If you do not have expanded memory, the
default value is x.

Note

Install CARDDRV.EXE before MS-FLASH.SYS

The device command for the CARDDRV.EXE device driver must
appear before the device command for MS-FLASH.SYS in your
CONFIG.SYS file.

Example

Suppose your MS-FLASH.SYS device driver is located on drive C in
a directory named DOS. To install MS-FLASH.SYS using the default
values, add the following line to your CONFIG.SYS file:

device=c:\dos\ms-flash.sys

To create the Flash File System cache in extended memory, add the
following line to your CONFIG.SYS file:

device=c:\dos\ms-flash.sys /cache=x