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 Name | Default Location | Dos Ver. | Win Ver. | Size | Date | Source |
|---|
| Dblbuff.sys | c:\windows |
7.0 | Win95 |
2 1001 | 11/07/95 | win95_09.cab |
| 7.1 | Win95 (OSR2.x) |
2 1001 | 24/08/96 | win95_14.cab |
| Win98 |
2 614 | 11/05/98 | win98_46.cab |
| Win98 SE |
2 614 | 23/04/99 | win98_52.cab |
Superscripts denote which same size files, if any, are identical (using FC).
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