home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Shareware Supreme Volume 6 #1
/
swsii.zip
/
swsii
/
198
/
DOS6ALL.ZIP
/
PD0474.TXT
< prev
next >
Wrap
Text File
|
1993-03-29
|
8KB
|
187 lines
======================================================================
Microsoft(R) Product Support Services Application Note (Text File)
PD0474: WINDOWS 3.0 DOESN'T RUN IN 386 ENHANCED MODE
======================================================================
Revision Date: 4/93
No Disk Included
The following information applies to Microsoft MS-DOS(R), versions 5.0,
5.0 upgrade, 6.0, and 6.0 upgrade.
Introduction
------------
This Application Note discusses how to solve the problem of Microsoft
Windows version 3.0 not running in 386 enhanced mode on a system with
Microsoft MS-DOS version 5.0 or 6.0, MS-DOS 5 Upgrade, or MS-DOS 6
Upgrade installed.
Solution
--------
Make sure that:
- Your system includes at least 1 (megabyte) MB (1,048,576
bytes) of extended memory. To determine the amount of available
extended memory, type "mem" (without the quotation marks) at the MS-
DOS command prompt and press enter.
If you do not have 1 MB of available extended memory, reduce
extended memory usage by removing the DOS=HIGH command from your
CONFIG.SYS file. If you are using the version of SMARTDrive that is
provided with MS-DOS 5.0 or MS-DOS 5 Upgrade (SMARTDRV.SYS), reduce
the value of the MinCacheSize parameter. If you are using the
version of SMARTDrive that is provided with MS-DOS version 6.0 or
MS-DOS 6 Upgrade (SMARTDRV.EXE), reduce the value of the
WinCacheSize parameter.
- By default, Setup configures MS-DOS to install HIMEM.SYS when
you start your system. If MS-DOS does not install HIMEM.SYS, make
sure the command "device=c:\dos\himem.sys" (without the quotation
marks) appears in your CONFIG.SYS file before any commands that
start device drivers or programs that use extended memory.
- The FILES command in your CONFIG.SYS file specifies at least
30 files.
- The BUFFERS command in your CONFIG.SYS file specifies at least
20 buffers.
- Your AUTOEXEC.BAT file includes a SET command such as the
following that establishes the location where temporary files are
stored
set temp=<drive>:\<directory>
where <drive> is your hard disk drive and <directory> is the
directory where your temporary files are stored. This set command
creates an environment variable that Windows version 3.0 uses to
determine where to store its temporary files. For example, the
following command directs Windows to store its temporary files in a
directory named TEMP on drive C:
set temp=c:\temp
- Your system includes the WINA20.386 file. The Setup program
for MS-DOS places this file in the root directory of your startup
drive (usually drive C). If you have moved the WINA20.386 file to
another directory, you need to edit your CONFIG.SYS and SYSTEM.INI
files to reflect the accurate location of this file. Use the
procedures outlined below.
If you can't find the WINA20.386 file in any directory on your hard
disk drive, expand and copy the file from your MS-DOS installation
disks to the root directory of your startup drive by typing the
following at the MS-DOS command prompt and pressing ENTER
expand <floppy>:\wina20.38_ <startupdrive>:\wina20.386
where <floppy> is the floppy disk drive that contains the
installation disk with the compressed file you want to expand, and
<startupdrive> is your startup drive. For example, if your
installation disk is in floppy disk drive A and your startup drive
is drive C, type the following command:
expand a:\wina20.38_ c:\wina20.386
The WINA20.386 file is located on the following installation disks:
MS-DOS 3.5-Inch Disk 5.25-Inch 3.5-Inch 5.25-Inch
Version Number (1.44 Disk Number Disk Disk
MB) (1.2 MB) Number Number
(720K) (360K)
-------------------------------------------------------------
MS-DOS 5 N/A N/A Disk 3 Disk 5
Upgrade
MS-DOS 5.0a N/A Disk 2 Disk 3 Disk 5
Upgrade
MS-DOS 6 Disk 1 Disk 2 Disk 3 Disk 5
Upgrade
If you have moved your WINA20.386 file to a directory other than
the root directory of your startup drive, use the following
procedure to allow Windows 3.0 to find it:
1. Edit your CONFIG.SYS file. To edit the file using MS-DOS Editor,
type the following at the MS-DOS command prompt and press ENTER:
edit <startupdrive>:\config.sys
2. Add the following line at the end of your CONFIG.SYS file:
switches=/w
3. Save your CONFIG.SYS file. If you're using MS-DOS Editor, choose
Exit from the File menu. When MS-DOS Editor displays a dialog
box prompting you to save your file, choose the Yes button or
press ENTER.
4. Next, use MS-DOS Editor to open your Windows SYSTEM.INI file.
Your SYSTEM.INI file is in the directory where your Windows
files reside. For example, type the following at the MS-DOS
command prompt and press enter
edit <drive>:\<directory>\system.ini
where <drive> is your hard disk drive and <directory> is the
directory where your Windows files reside.
For example, if your hard disk drive is drive C and your Windows
files are located in the WINDOWS directory, type the following
command:
edit c:\windows\system.ini
5. Find the section that begins with the header [386Enh] and add
the following command
device=<drive>:\<directory>\wina20.386
where <drive> is your hard disk drive and <directory> is the
directory where the WINA20.386 file is now located. For example,
if you moved the file to your WINDOWS directory, you would add
the following command to your Windows SYSTEM.INI file:
device=c:\windows\wina20.386
6. Save your SYSTEM.INI file. If you're using MS-DOS Editor, choose
Exit from the File menu. When MS-DOS Editor displays a dialog
box prompting you to save your file, choose the Yes button or
press ENTER.
7. Restart your computer by pressing CTRL+ALT+DEL.
If Windows version 3.0 doesn't run in 386 enhanced mode after you have
checked the items listed above, and you are using EMM386.EXE, do the
following:
1. Use a text editor, such as MS-DOS Editor, to open the SYSTEM.INI
file that is located in the directory where your Windows files
reside. If you want to use MS-DOS Editor, type the following at the
MS-DOS command prompt and press ENTER
edit <drive>:\<directory>\system.ini
where <drive> is your hard disk drive and <directory> is the
directory where your Windows files reside. For example, if your
hard disk drive is drive C and your Windows files are located in
the WINDOWS directory, type the following command:
edit c:\windows\system.ini
2. Insert the following command in the [386Enh] section of the
SYSTEM.INI file:
EMMEXCLUDE=A000-EFFF
3. Save your SYSTEM.INI file. If you're using MS-DOS Editor, choose
Exit from the File menu. When MS-DOS Editor displays a dialog box
prompting you to save your file, choose the Yes button or press
ENTER.
4. Start Windows version 3.0. If Windows version 3.0 does not run in
386 enhanced mode, a device conflict is preventing Windows from
running in 386 enhanced mode. Call Microsoft Product Support
Services for help.