A bad UMB number has been specified
Cause: LOADHIGH. When using the LOADHIGH command with the /l switch,
you specified an invalid region in the upper memory block (UMB).
Action: Use LOADHIGH without the /l switch and LOADHIGH will find an available region,
or you can specify a valid region. To determine which regions are valid, use the MEM /f command.
Access denied
Cause: COMMANDS. Processing the requested command violates the access mode of the file,
subdirectory, or device.
For example:
o You attempted to write to a file marked read-only or to a write-protected diskette.
o You attempted to open a subdirectory as a file.
Action: Use a different file name or, if the file is read-only and you need to use that file,
change its attribute with the ATTRIB command.
Active code page not available from CON device
Cause: KEYB. The KEYB status function was requested, but KEYB could not determine
the loaded CON code page. Either the code page switching CON driver has not been installed,
or there is no currently loaded CON code page.
Action: Install code page switching CON driver if needed.
All available space in the Extended DOS Partition is assigned to logical drives
Cause: FDISK. All the space in the extended partition has been assigned to logical drives.
Action: Remove or reduce the size of the existing logical drives and run
FDISK again to create a logical drive.
All logical drives deleted in the Extended DOS Partition
Cause: FDISK. There are no logical drives defined in the extended DOS partition.
Action: Delete the extended DOS partition if you no longer need it on the hard disk.
Allocation error, size adjusted
Cause: CHKDSK. A file name precedes this message.
The file size as indicated by the directory is different from the file size indicated by the number
of clusters allocated to the file. The file was truncated to match the amount of data allocated.
Action: If you specified the /f switch, the new file size is changed to the number of clusters
in the file times the number of bytes per cluster. To correct the file size, type:
chkdsk /f
An incompatible DOSKEY is already installed
Cause: DOSKEY. There is more than one version of DOSKEY on your computer, and the installed version is not
compatible with your system.
Action: Locate all versions of the program, and delete all but the correct one. If you are not sure which
version is correct, copy the correct version from your PC DOS installation diskette.
ANSI.SYS must be installed to perform requested function
Cause: MODE. The requested screen function requires the extended support of ANSI.SYS.
Action: Add DEVICE=ANSI.SYS to your CONFIG.SYS file and restart PC DOS.
APPEND already installed
Cause: APPEND. You have already used the APPEND command once since you turned on your computer. You
are now trying to use either the /x or /e switch with the APPEND command. These switches are valid only the
first time you type the APPEND command.
Action: Use the APPEND command with the /x:on switch or without any switches. If you turn off your computer
and restart it, you can use the /x or /e switch.
APPEND / ASSIGN Conflict
Cause: APPEND. You cannot use the APPEND command on an assigned drive.
Action: Cancel the drive assignment before using the APPEND command with this drive again.
Attempt to write on write-protected diskette
Cause: COMMANDS. Either the file is read-only or there is not enough available free storage space left on the
diskette.
Action: Do one of the following:
o Specify a file that can be written to.
o Make free storage space available by erasing unneeded files.
o Use the ATTRIB command to change the attributes of the file you want to write to.
For information about changing file attributes, see the ATTRIB command in the PC DOS 7 Command Reference.
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