NOVELL TECHNICAL INFORMATION DOCUMENT

TITLE:              PAT314.EXE
DOCUMENT ID:        TID000260
DOCUMENT REVISION:  A
DATE:               01JUL93
ALERT STATUS:       Yellow
INFORMATION TYPE:   Symptom Solution
README FOR:         PAT314.EXE

NOVELL PRODUCT and VERSION:
DR DOS 6.0 4/92

ABSTRACT:
This patch modifies Int 21h/33xxh, the Ctrl Break handler to support
undocumented MSDOS function int 21h/3302h.
_________________________________________________________________

DISCLAIMER
THE ORIGIN OF THIS INFORMATION MAY BE INTERNAL OR EXTERNAL TO NOVELL. 
NOVELL MAKES EVERY EFFORT WITHIN ITS MEANS TO VERIFY THIS INFORMATION. 
HOWEVER, THE INFORMATION PROVIDED IN THIS DOCUMENT IS FOR YOUR INFORMATION
ONLY.  NOVELL MAKES NO EXPLICIT OR IMPLIED CLAIMS TO THE VALIDITY OF THIS
INFORMATION.
_________________________________________________________________

Self-Extracting File Name:  PAT314.EXE

Files Included     Size     Date        Time

  PAT314.TXT          (This File)
  IBMDOS.314      39239    1-10-92      3:14a


README of PATCH314.EXE


Product:       DR DOS 6.0

Description:    This patch modifies Int 21h/33xxh, the Ctrl Break handler
to support undocumented MSDOS function int 21h/3302h

ASSUMPTIONS:

1.  The file IBMDOS.314 is in the root directory of your C:\ drive.
2.  TaskMAX is not loaded.


INSTALLATION INSTRUCTIONS:

1.  Remove the attributes from the current working copy of IBMDOS.COM

        From the C prompt:
             Type: ATTRIB -RSH IBMDOS.COM
             Press <ENTER>

2.  Make a backup copy of IBMDOS.COM

             Type: COPY IBMDOS.COM C:\DRDOS\IBMDOS.OLD
             Press <ENTER>

3.  Replace the original IBMDOS.COM with the patched IBMDOS.314


             Type: COPY IBMDOS.314 IBMDOS.COM
             Press <ENTER>

4.  Verify the copied file is the correct size, date and checksum

             Type: CD \
        From the C prompt:
             Type: XDIR IBMDOS.COM /C
             Press <ENTER>

        The following message will display:

--a--- 39,239 1-10-92 3:14a C964 c:ibmdos.com

NOTE: In Archive attribute (a) may be set, however it is not a required
attribute.

5.  Replace the System, Hidden, Read-Only attributes on IBMDOS.COM

             Type: ATTRIB +RSH IBMDOS.COM
             Press <ENTER>

6.  Reboot the computer.
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