Dblbuff.sys

Index
The Dblbuff.sys device driver is used to perform double buffering which is required to provide compatibility for certain hard-disk controllers that cannot work with memory provided by EMM386 or Windows running in 386 Enhanced mode.

Syntax

DEVICE=[path] DBLBUFF.SYS [/D+]
or
DEVICEHIGH=[path] DBLBUFF.SYS [/D+]

[Path] The full path. Default is the root directory of the start-up drive (usually C:/)
/D+ Instructs Dblbuff.sys to double-buffer all disk I/O all the time. By default, it will only double-buffer I/O to UMBs, and it will automatically stop double-buffering if it appears to be unnecessary.

Notes

If Windows Setup determined that your system may need double-buffering, it will add a DoubleBuffer=1 entry to the [Options] section of Msdos.sys, which will automatically load Dblbuff.sys. To manually enable double-buffering, the above entry can be added to Msdos.sys or the device driver can be loaded in Config.sys using Device/DeviceHigh.

Examples

To enable double buffering by loading the Dblbuff.sys device driver into upper memory:

DeviceHigh=c:\windows\Dblbuff.sys

File Details

File NameDefault LocationDos Ver.Win Ver.SizeDateSource
Dblbuff.sysc:\windows 7.0Win95 2 100111/07/95win95_09.cab
7.1Win95 (OSR2.x) 2 100124/08/96win95_14.cab
Win98 2 61411/05/98win98_46.cab
Win98 SE 2 61423/04/99win98_52.cab

Superscripts denote which same size files, if any, are identical (using FC).


If you should have any comments or suggestions,
please contact: Bob Watson
.
This page last revised:
August 27, 2000.