APPENDIX: Computer Memory - Downloading Software

INTRODUCTION
A minimum of 590 K conventional memory is required to run the DOS based DSC Downloading Software DLS-1 V6.5C.  To determine the amount of free Conventional Memory there is on a computer, go to an MsDOS prompt (from a DOS Icon or by some other means) and type:
MEM  <enter>

If the computer being used does not have sufficient free conventional memory then these instructions will help.  The following files have been used with Windoze 98 to handle the different Autoexec.bat and Config.sys files required to free this memory.  I have used these files to ‘not’ load CD ROM drivers before running the Downloading Software, and therefore freeing-up sufficient memory to run it.  Computer memory will automatically return to 'normal' at the next reboot.

INSTRUCTIONS
Save copies of the existing Autoexec.bat and Config.sys files in the root directory as Autoexec.NOR and Config.NOR.  Create special Autoexec.DSC and Config.DSC files based on the normal files, but with chosen lines removed to eliminate drivers or software sufficient to free up 590k.

Create NORMAL.bat and DSCBAT.bat as shown below.  Locate these files in the C:\BAT directory.


@echo off
:-       Batch file    Autoexec.nor
:-       Normal Autoexec.bat file.
Remainder of commands in file.  ***
set dsc=


rem  Autoexec.DSC for DSC Alarm software.
@echo off
:-       Batch file    Autoexec.DSC
:-       Is assumed that the file normal.bat is in the c:\bat\ sub directory.
Remainder of commands in file.  ***
SET  dsc=dsc_is_ok
rem  This next line sets the computer up for normal memory operation on next boot-up.
rem  Simply rebooting after using the DSC Downloading software
rem    will re-configure the computer normally.  This should be the last line in Autoexec.DSC.
c:\bat\normal.bat


rem Config.nor
rem Normal Config.sys file.
Remainder of commands in file.  ***


rem Config.dsc
rem For DSC Alarm software.
Remainder of commands in file.  ***
Some drivers should be removed to increase available memory.  ***


@echo off
:-       Batch file    DSCBAT.bat
:-       Used to start the DSC downloading software.
:-       Make an ICON on the Windoze desktop to call this batch file program.
:-       Is assumed that the file DSC.bat is in the c:\dsc sub directory.
c:
if (%dsc%)==()  echo  MEMORY IS NOT SET FOR DSC program.   !!
if (%dsc%)==()  pause
if (%dsc%)==()  copy c:\autoexec.dsc  c:\autoexec.bat
if (%dsc%)==()  copy c:\config.dsc  c:\config.sys
if (%dsc%)==()  echo   reboot   reboot   reboot!
if (%dsc%)==()  goto END
cd\dsc
dsc.bat
:end


@echo off
echo  NORMAL memory manager bat file.
c:
if not (%dsc%)==()  echo  MEMORY IS NOT NORMAL.   !!
REM  if not (%dsc%)==()  pause
if not (%dsc%)==()  copy c:\autoexec.hpr  c:\autoexec.bat
if not (%dsc%)==()  copy c:\config.hpr  c:\config.sys
if not (%dsc%)==()  echo   reboot   reboot   reboot!
 

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Updated: October 24, 1999