Keyboard Problems in Windows 3.1

Last reviewed: November 22, 1994
Article ID: Q85481

The information in this article applies to:

Microsoft Windows operating system versions 3.1, 3.11

SUMMARY

If you are having keyboard-related problems in applications run from Microsoft Windows operating system version 3.1, then you may need to add MS-DOS's KEYB.COM command to your AUTOEXEC.BAT file.

MORE INFORMATION

Steps to Add KEYB.COM.

Edit your AUTOEXEC.BAT file with a standard ASCII text editor, such as Notepad.
Add the following line if you are using MS-DOS versions 4.x or 5.0:
```
      C:\DOS\KEYB US
```
The following line may be necessary if you are running MS-DOS 3.3:
```
      C:\DOS\KEYB US,, C:\DOS\KEYBOARD.SYS
```
If the system does not seem to realize that a 101-key keyboard exists and you are using MS-DOS 5, the following command will force enhanced keyboard support:
```
        C:\DOS\KEYB US /E

   Note: In MS-DOS versions earlier than MS-DOS 3.3, the equivalent of
   KEYB US does not exist.
```

KEYB.COM replaces the ROM BIOS INT 09h keyboard interrupt handler with its own routine. This may allow handling of the keyboard in a manner that does not conflict with A20 handling.

KBCategory: kbhw
KBSubcategory: win31
Additional reference words: 3.1 3.11 3.10 himem.sys

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Last reviewed: November 22, 1994
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