Q151715: How to Toggle the CAPS LOCK and NUM LOCK Keys

Article: Q151715
Product(s): Microsoft Windows 95.x Retail Product
Version(s): 95
Operating System(s): 
Keyword(s): kbProgramming win95
Last Modified: 17-DEC-2000

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The information in this article applies to:

- Microsoft Windows 95 
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SUMMARY
=======

This article describes how to create MS-DOS-based programs to toggle the CAPS
LOCK and NUM LOCK keys on and off.

MORE INFORMATION
================

To Toggle the CAPS LOCK Key On
------------------------------

1. Use any text editor (such as Notepad) to create the following file:

     a 100
     mov ax,0040
     mov ds,ax
     or byte ptr [0017],40
     mov ah,1
     int 16
     mov ax,4c00
     int 21

     r cx
     0013
     n CAPS_ON.COM
     w
     q

2. Save the file as Capson.deb

3. Type the following line at a command prompt:

  " debug < capson.deb " (without the quotation marks)

  This creates an MS-DOS-based program named Caps_on.com that toggles the CAPS
  LOCK key on.

To Toggle the CAPS LOCK Key Off
-------------------------------

1. Use any text editor (such as Notepad) to create the following file:

     a 100
     mov ax,0040
     mov ds,ax
     and byte ptr [0017],bf
     mov ah,1

     int 16
     mov ax,4c00
     int 21

     r cx
     0013
     n CAPS_OFF.COM
     w
     q

2. Save the file as Capsoff.deb

3. Type the following line at a command prompt:

  " debug < capsoff.deb " (without the quotation marks)

  This creates an MS-DOS-based program named Caps_off.com that toggles the CAPS
  LOCK key off.

To Toggle the NUM LOCK Key On
-----------------------------

1. Use any text editor (such as Notepad) to create the following file:

     a 100
     mov ax,0040
     mov ds,ax
     or byte ptr [0017],20
     mov ah,1

     int 16
     mov ax,4c00
     int 21

     r cx
     0013
     n NUM_ON.COM
     w
     q

2. Save the file as Numon.deb

3. Type the following line at a command prompt:

  " debug < numon.deb " (without the quotation marks)

  This creates an MS-DOS-based program named Num_on.com that toggles the NUM
  LOCK key on.

To Toggle the NUM LOCK Key Off
------------------------------

1. Use any text editor (such as Notepad) to create the following file:

     a 100
     mov ax,0040
     mov ds,ax
     and byte ptr [0017],df
     mov ah,1

     int 16
     mov ax,4c00
     int 21

     r cx
     0013
     n NUM_OFF.COM
     w
     q

2. Save the file as Numoff.deb

3. Type the following line at a command prompt:

  " debug < numoff.deb " (without the quotation marks)

  This creates an MS-DOS-based program named Num_off.com that toggles the NUM
  LOCK key off.

Using the Toggle Programs
-------------------------

Place the appropriate command in the Autoexec.bat or Config.sys file to
automatically toggle the keys you want. For example, adding

  NUMLOCK=OFF

  -or-

  NUMLOCK=ON

to the Config.sys file will turn off or turn on the NUM LOCK key.

NOTE: You must be using MS-DOS version 6.x or later. This function was retained
in Windows 95.

Additional query words: capslock numlock caps num elite boot

======================================================================
Keywords          : kbProgramming win95 
Technology        : kbWin95search kbZNotKeyword3
Version           : :95
Issue type        : kbhowto

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