Applications that Check the DOS Version Number
Document 1609
Applications that Check the DOS Version Number
Initials:
11/26/91
DRDOS 6.0
Keywords:
COMPAQ
3.31
Description:
The DR DOS 6.0 Version Numbers
A few applications and device drivers have been encountered which,
when loading under the DR DOS 6.0 operating system, display an error
message that states the current version of operating system is not
supported. This can occur for several reasons, which are outlined
below.
Device drivers for disk drives or networks are sometimes produced
for specific versions of DOS or occasionally will use specific configurations
for different versions of DOS. The DR DOS 6.0 operating system will
appear to be COMPAQ DOS 3.31 to applications and drivers. Usually,
a DOS 3.3 driver works properly. If you have been running previously
with MS/PC DOS 4.x, the driver that you have been using might be designed
specifically for that version. Contact the manufacturer of the driver
to see if they have any specific configuration information or drivers
for DOS 3.3x.
When applications request the DOS version number from the operating
system, the DR DOS 6.0 operating system returns version 3.31. The
application then knows that it should expect support for DOS 3.3-level
calls and support for larger than 32 Mbyte partitions using the COMPAQ
Extended Interrupt 25 and 26 convention. Most applications do follow
these conventions and therefore work without any difficulty.
However, some applications have been designed to go beyond those conventions
and actually attempt to directly manipulate DOS data structures or
replace sections of the operating system code with their own. These
applications depend on having intimate knowledge of each DOS version
they detect and have been written to react differently for each of
those versions. If an application uses this type of technique, the
manufacturer will have to design the application to take the DR DOS
6.0 operating system into account as well. It is possible that the
manufacturer has already produced another version of your application
that runs under the DR DOS 6.0 operating system. Contact the manufacturer
to see if there is any information about upgrades or specific configuration
steps for the DR DOS 6.0 operating system. If the manufacturer is
interested in more information about the DR DOS 6.0 operating system,
they are welcome to contact Digital Research Inc. directly and we
will work with them on the situation.
Applications that Check the DOS Version Number
Initials:
11/26/91
DRDOS 6.0
Keywords:
COMPAQ
3.31
Description:
The DR DOS 6.0 Version Numbers
A few applications and device drivers have been encountered which,
when loading under the DR DOS 6.0 operating system, display an error
message that states the current version of operating system is not
supported. This can occur for several reasons, which are outlined
below.
Device drivers for disk drives or networks are sometimes produced
for specific versions of DOS or occasionally will use specific configurations
for different versions of DOS. The DR DOS 6.0 operating system will
appear to be COMPAQ DOS 3.31 to applications and drivers. Usually,
a DOS 3.3 driver works properly. If you have been running previously
with MS/PC DOS 4.x, the driver that you have been using might be designed
specifically for that version. Contact the manufacturer of the driver
to see if they have any specific configuration information or drivers
for DOS 3.3x.
When applications request the DOS version number from the operating
system, the DR DOS 6.0 operating system returns version 3.31. The
application then knows that it should expect support for DOS 3.3-level
calls and support for larger than 32 Mbyte partitions using the COMPAQ
Extended Interrupt 25 and 26 convention. Most applications do follow
these conventions and therefore work without any difficulty.
However, some applications have been designed to go beyond those conventions
and actually attempt to directly manipulate DOS data structures or
replace sections of the operating system code with their own. These
applications depend on having intimate knowledge of each DOS version
they detect and have been written to react differently for each of
those versions. If an application uses this type of technique, the
manufacturer will have to design the application to take the DR DOS
6.0 operating system into account as well. It is possible that the
manufacturer has already produced another version of your application
that runs under the DR DOS 6.0 operating system. Contact the manufacturer
to see if there is any information about upgrades or specific configuration
steps for the DR DOS 6.0 operating system. If the manufacturer is
interested in more information about the DR DOS 6.0 operating system,
they are welcome to contact Digital Research Inc. directly and we
will work with them on the situation.
Comments
Post a Comment