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HP OMNIBOOK 425 - MAXIMIZING DOS CONVENTIONAL MEMORY BY REMOVING
DOUBLESPACE AND FLASH FILE SYSTEM
ISSUE:HP OmniBook 425 - running MS Windows while freeing up a
maximum of 590 KB of DOS memory.
SOLUTION:To free up the DOS memory, two device drivers have to
be disabled, DoubleSpace and the Flash File System.
Disabling DoubleSpace will reduce the capacity of the
hard drive to 40 MB and disabling the Flash File System
will disable your access to drive D and the HP OmniBook
425 Communication ROM card. If access to either of
these is necessary after following this procedure, see
"Reinstalling the Flash File System" below. This
process should only be used with the hard disk version
of the HP OmniBook 425 because the Flash File System
will be disabled. The following process describes
copying the required files to drive C and editing DOS
and Windows startup files.
REFORMATTING THE HARD DRIVE
CAUTION:ALL EXISTING DATA ON DRIVE C WILL BE
LOST. ALL DATA SHOULD BE BACKED UP
BEFORE CONTINUING.
1. Exit Windows.
2. Type FDISK C:and press [Enter].
3. Answer YES to the "Proceed with FDISK (Y/N)? [N]"
prompt and press [Enter].
4. Press any key to the "Press any key when ready . . .
" prompt to reboot the HP OmniBook 425.
5. Answer NO to the "Do you want to format drive C:and
copy required files to it (Y/N)? [Y]" prompt and
press [Enter].
6. At the D:prompt, type FORMAT C:and press [Enter].
Answer YES to the
"Proceed with Format (Y/N)?" prompt and press
[Enter].
7. When prompted for a volume label, type OMNIBOOK and
press [Enter].
COPYING REQUIRED FILES TO DRIVE C
1. At the DOS prompt, type D:\OBSETUP /F and press
[Enter]. This will copy most of the required files
from drive D to drive C. Reboot the HP OmniBook
425.
2. Once the HP OmniBook 425 has rebooted, start File
Manager and open one window for drive C and one
window for drive D.
3. In the window that displays drive C, select the C:\
icon to make the root directory active. If a
replace prompt is displayed when performing the
following steps, answer YES.
4. Copy the OMNIBOOK directory on drive D to drive C.
5. Copy the WINDOWS directory on drive D to drive C.
6. Copy the WINWORD directory on drive D to drive C.
7. Copy the files in the TSI directory on drive D to
the WINDOWS\SYSTEM subdirectory on drive C.
8. Copy all of the files in the root of drive D to the
root of drive C.
9. Change the window that displays drive D to display
drive C and select the OMNIBOOK directory. Move
OBMGMEXE.EXE to C:\WINDOWS directory.
10. Change one window to display the
C:\WINDOWS\SYSTEM directory and the other window to
display the C:\TSI directory. Move LLRSTS.EXE in
the C:\WINDOWS\SYSTEM subdirectory to the C:\TSI
subdirectory.
11. Change one window to display C:\OMNIBOOK and
the other to display C:. Move OBCIC.EXE in the
OMNIBOOK directory to root of drive C.
12. Delete WIN.BAT in the root of drive C.
13. Copy C:\AUTOEXEC.DOS to C:\AUTOEXEC.BAT.
14. Exit File Manager.
EDITING REQUIRED FILES
1. Use Microsoft (R) Word and edit C:\CONFIG.DOS.
2. Type REM at the beginning of the line listed below.
DEVICE=C:\WINDOWS\EMM386.SYS NOEMS X=D000-DFFF
3. Save the file as CONFIG.SYS and again as CONFIG.WIN.
4. Edit C:\WINDOWS\CONTROL.INI. and use Edit-Replace to
replace all occurrences of D:with C:. If a replace
prompt is displayed, when performing these steps,
answer "YES".
5. Save the file.
6. Edit C:\WINDOWS\SYSTEM.INI and replace all
occurrences of D:with C:.
7. Save the file.
8. Edit C:\WINDOWS\WIN.INI and replace all occurrences
of D:with C:.
9. Save the file and exit Microsoft Word.
10. Select the HP Financial Calculator icon in
Windows Main group. Press Alt+Enter to display the
Program Item Properties and change the command line
to read "C:\HPCALC.EXE".
11. Select the LapLink RA On/Off icon in the
Windows Main group. Press Alt+Enter to display the
Program Item Properties and change the command line
to read "C:\TSI\LLRSTS.EXE /S".
12. Exit Windows.
REBOOTING THE HP OMNIBOOK 425
1. At the DOS prompt, type OBBOOT 3. This will reboot
the HP OmniBook 425 and disable DoubleSpace and the
Flash File System.
2. To start Windows, type MSWIN and press [Enter].
OPTIONAL -- CREATE A BATCH FILE TO START LAPLINK REMOTE AND MS
WINDOWS
1. Start Windows by typing MSWIN and pressing [Enter].
2. Start Notepad and type the following lines.
C:\LLREMOTE
C:\WINDOWS\MSWIN
C:\LLREMOTE /U
3. Save the file as C:\WIN.BAT.
4. Modify AUTOEXEC.BAT and AUTOEXEC.WIN files to use
this batch file.
REINSTALLING THE FLASH FILE SYSTEM
1. Exit Windows.
2. Type OBBOOT 2 and press [Enter] at the DOS prompt.
3. To disable the Flash File System again, type OBBOOT
3 at the DOS prompt.
Copyright Hewlett-Packard Co. 1996
This information is subject to change without notice and
is provided "as is" with no warranty.
Hewlett-Packard shall not be liable for any direct,
indirect, special, incidental or consequential damages
in connection with the use of this material.
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