2500-series Keyboard Fix for Workgroups 3.11
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Microsoft(R) Product Support Services Application Note (Text File)
WG0974: VKDA.386 CORRECTS KEYBOARD PROBLEMS
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Revision Date: 8/94
1 Disk Included
The following information applies to Microsoft Windows(TM) for
Workgroups, version 3.11.
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| Copyright (C) 1994 Microsoft Corporation. All Rights Reserved. |
| Microsoft and MS-DOS are registered trademarks and Windows is a |
| trademark of Microsoft Corporation. |
| AST is a registered trademark of AST Research. |
| COMPAQ is a registered trademark and Aero and LTE Elite are |
| trademarks of Compaq Computer Corporation. |
| DEC is a trademark of Digital Equipment Corporation. |
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| Machines Corporation. |
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SYMPTOMS
========
When you start Windows for Workgroups version 3.11, your system may
stop responding (hang) at the password dialog box or in Program
Manager if you set your password to null during Setup. The WG0974 disk
included with this Application Note contains a new virtual keyboard
driver that corrects this problem for the following computers:
Manufacturer | Model(s)
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Acer America | Pac 150, 1100LX Portable
|
Advent | Machines using Blue Lightning chip set
Corporation |
|
Ambra Corporation | Machines using Blue Lightning chip set,
| including B466DL, B466TL, D466DL, D466TL, and
| D466BL
|
AST(R) | Ascentia 900N 486/75 laptop
|
Compaq | All Aero(TM) machines, LTE Elite(TM) 4/75CX
|
Compudyne | Specific models unknown
|
Crystal Data | 486 machines
Systems |
|
DEC(TM) | 316 SX, 320 SX
|
GRiD(R) Systems | 320S with Tandy(R)/Phoenix BIOS V 1.10
|
GTSI | 0783 486 SX/25 (SFA and desktop)
|
IBM(R) | Valuepoint PS/2(R) 450TX2/D machine types
| 6382, 6384, and 0783
|
Tandy | 2500 SX/20, 2500 SX/25, 2500 SX/33, and 4020
|
Twinhead | 486/33, Superset 590 386/25
|
Victor | 300 SX/33 and 400 SX
NOTE: Machines manufactured by Compaq after April 1, 1994, that
ship with Windows 3.1 come preinstalled with a virtual keyboard
driver (VKD) that corrects this problem. Upgrading to Windows for
Workgroups 3.11 leaves this VKD in place and allows the keyboard to
work properly. However, if you install Windows for Workgroups 3.11
to a new directory, the keyboard stops functioning. If you perform
such an installation, you must manually install the new VKD.
CAUSE
=====
The keyboard controllers in these machines generate unnecessary
interrupts each time a key is pressed and released. The keyboard stops
responding because the Windows for Workgroups 3.11 VKD, unlike the
Windows 3.1 VKD, does not ignore these extra interrupts.
RESOLUTION
==========
To correct this problem, use one of the following methods:
- Install the new VKDA.386 file provided with this Application Note.
-or-
- Install the Microsoft Mouse version 9.x driver. The replacement VKD
that comes with this software (MOUSEVKD.386) handles the extra
interrupts generated by the keyboards.
NOTE: You may also be able to download a new VKD from the your
computer manufacturer's bulletin board service (BBS). For example,
SP0738.ZIP, which is available on the COMPAQ(R) BBS, contains a new
VKD that corrects this problem. Contact your computer manufacturer
to see if an updated driver is available.
To install the new VKDA.386 file
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1. Insert the enclosed WG0974 disk in the appropriate floppy disk
drive.
2. To copy the file to the Windows SYSTEM subdirectory, type the
following at the MS-DOS command prompt and then press ENTER
copy <drive>:\vkda.386 <destination>
where <drive> is the floppy disk drive containing the WG0974 disk
and <destination> is the drive and directory of your Windows SYSTEM
subdirectory.
For example, if the WG0974 disk is in drive A and your Windows
directory is called WINDOWS and is on drive C, type the following
at the MS-DOS command prompt and then press ENTER:
copy a:\vkda.386 c:\windows\system
3. Use a text editor to edit the keyboard= entry in the [386Enh]
section of the SYSTEM.INI file. Change
keyboard=*vkd
to:
keyboard=c:\windows\system\vkda.386
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.