Microsoft DOS drivparm command

Updated: 05/21/2018 by Computer Hope

About drivparm

Drivparm allows the default or original device driver settings to be overridden when the config.sys is loaded.

The drivparm command is an internal command that is available in the below Microsoft operating systems.

DRIVPARM=/d:number /c /f:factor /h:heads /i /n /s:sectors /t:tracks

/d:number	Specifies physical drive number. Numbers must be in the range of 0 to 255.
/c	Specifies that the driver will be able to tell that the floppy disk drive door is open.
/f:factor	Specifies drive. Default value is 2. 0 - 160 K/180 K or 320 K/360 K 1 - 1.2 megabyte 2 - 720 K (3.5" disk) 5 - Hard disk 6 - Tape 7 - 1.44 MB (3.5" disk) 8 - Read/write optical disk 9 - 2.88 MB (3.5" disk)
/h:heads	Specifies the maximum number of heads.
/i	Specifies an electronically-compatible 3.5" floppy drive.
/n	Non-removable block device.
/s:sectors	Number of sectors per track, ranging in value from 1 to 99.
/t:tracks	Number of tracks per side on the block device, ranging from 1 to 999. Default values will vary depending on the factor selected.

drivparm=/d:1 /c /h:2 /s:9 /t:80

Configures a 3.5" 720 K floppy drive. This line would be loaded in the config.sys.