DOCUMENT:Q71511 17-DEC-2000 [msdos] TITLE :Programs to Turn CAPS LOCK Key Off or On PRODUCT :Microsoft Disk Operating System PROD/VER:MS-DOS:3.x,4.x,5.x,6.0,6.2,6.21,6.22 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft MS-DOS operating system versions 3.1, 3.2, 3.21, 3.3, 3.3a, 4.0, 4.01, 5.0, 5.0a, 6.0, 6.2, 6.21, 6.22 ------------------------------------------------------------------------------- SUMMARY ======= You can use the MS-DOS DEBUG utility to create a program (CAPS_ON.COM) that turns on the CAPS LOCK key. (Note: You can modify CAPS_ON.COM to turn CAPS LOCK off; see the instructions following the steps for creation of CAPS_ON.COM.) MORE INFORMATION ================ Follow the steps below to create CAPS_ON.COM: 1. Create a DEBUG script file (CAPS_ON.SCR) using a text editor such as the MS-DOS EDLIN line editor. (See the "Microsoft MS-DOS User's Guide" for more information on EDLIN.) The CAPS_ON.SCR file must contain the following lines exactly (where means to press the ENTER key on the keyboard): a 100 mov ax,0040 mov ds,ax or byte ptr [0017],40 mov ax,4c00 int 21 r cx 000f n caps_on.com w q 2. Redirect this script file into the DEBUG utility by entering the following command at the DOS prompt: " C:\>debug < caps_on.scr" (without the quotation marks) 3. The CAPS_ON.COM program has now been created. To test the program, turn off the CAPS LOCK key, then call the CAPS_ON.COM program by entering the following command: " C:\>caps_on.com" (without the quotation marks) This should result in the CAPS LOCK indicator light coming on just as if you had pressed the CAPS LOCK key. This program can be modified to turn CAPS LOCK off rather than on. To do this, follow the steps in the example above, replacing all instances of "CAPS_ON" with "CAPS_OFF" and substituting the following line for the fourth line of the DEBUG script file: and byte ptr [0017],bf Additional query words: 6.22 3.20 3.21 3.30 3.30a 4.00 4.01 5.00 5.00a 6.00 6.20 ====================================================================== Keywords : Technology : kbMSDOSSearch kbMSDOS321 kbMSDOS400 kbMSDOS320 kbMSDOS330a kbMSDOS621 kbMSDOS622 kbMSDOS620 kbMSDOS600 kbMSDOS310 kbMSDOS500 kbMSDOS330 kbMSDOS401 kbMSDOS500a Version : MS-DOS:3.x,4.x,5.x,6.0,6.2,6.21,6.22 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2000.