Specifications

Software Considerations
Some programs that use virtual mode require a virtual buffer to
run correctly. You can allocate a virtual buffer using the /W or
/WM switch with the DEVICE command for the ASPI4DOS.SYS
driver. Programs that conform to the VDS specification do not
require a virtual buffer. See the following list to determine if a
program requires a separate buffer.
Program
MS Windows 286
MS Windows 386
MS Windows*
Version
all
2.x
3.0
or newer
Note
No buffer required
/W or /WM required
No buffer required
QEMM 386*
5.0
by Quarterdeck
or newer
No buffer required. Driver can be
loaded into high memory except
when loading from a SCSI drive
controlled by the adapter card’s
BIOS.
QEMM 386
by Quarterdeck
previous
to 5.0
/W should be used; at least 64KB
of extended memory should be
left free when QEMM is loaded
(i.e., DEVICE=QEMM.SYS
EXTMEM=64). Do not load
ASPl4DOS.SYS into high memory.
QRAM
by Quarterdeck
386MAX*
by Qualitas
all
4.08
or newer
No buffer required. Driver can be
loaded into high memory.
No buffer required. Driver can be
loaded into high memory except
when loading from a SCSI drive
controlled by the adapter card’s
BIOS.
386MAX
by Qualitas
previous
to 4.08
/W should be used; at least 64KB
of extended memory should be
left free when 386MAX is loaded
(i.e., DEVICE =386MAX.SYS
EXT=64). Do not load
ASPI4DOS.SYS into high memory.
Installing Software Drivers for MS-DOS 4-19