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                  Advanced Gravis Computer Technology Ltd.

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                         AILPATCH VERSION 1.0
         Patches the latest drivers to prevent lockups with SBOS
      Copyright (C) 1993 by Advanced Gravis Computer Technology Ltd.
                         All Rights Reserved
        Written by Jayeson Lee-Steere (email: jayeson@gravis.com)


                 1.0 Legal Information
                 2.0 Description
                 3.0 Usage


1.0.0 **************** CHAPTER 1. - LEGAL INFORMATION ********************

 This software and documentation are protected by copyright law,
 with all rights reserved. Copyright is held by:

 Advanced Gravis Computer Technology Ltd.
 #101, 3750 North Fraser Way
 Burnaby, B.C. V5J 5E9
 CANADA

 This software is provided as-is. Advanced Gravis makes no warranties,
 express or implied, and does not warrant that the software will be fit
 for any particular purpose. Advanced Gravis will in no event be liable
 for loss of profits, nor incidental or consequential damages. You use
 this software at your own risk.

 This software may not be modified, disassembled or reverse engineered
 in any way without written authorization from Advanced Gravis.

 All trademarks and registered trademarks are the property of their
 respective owners.



2.0.0 ****************** CHAPTER 2. - DESCRIPTION ************************

The latest version of the SBDIG.ADV driver contains routines designed
to correct undocumented "Halt DMA transfer" problems with Sound
Blaster cards.

Unfortunately these routines cause lockup problems with SBOS. The -O1
switch on SBOS is designed to compensate for this, however this
option conflicts with Privateer.

The file AILPATCH.ZIP allows you to search files for these routines
and disable them, allowing SBOS to operate properly.



3.0.0 ********************* CHAPTER 3. - USAGE ***************************

 To use this patch,

 * Change to the install directory of the software you are having trouble
   with (e.g. CD C:\PRIVATER)

 * Unzip this program into the install directory of the software you are
   having trouble with (e.g. PKUNZIP A:\AILPATCH )

 * Run AILPATCH, specifying the file name of the sound driver
   (e.g. AILPATCH SBDIG.ADV) or the name of the file containing the sound
   driver (e.g. AILPATCH SOUND.TRE)

 * You should no longer have any lockup problems.

 NOTE: For Privateer, you must specify SOUND.TRE as the filename, since
       this file contains all of the sound drivers.

                                  THE END