                 Advanced Gravis Computer Technology Ltd.

       HEAD OFFICE:                       US DISTRIBUTION CENTER:
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       Burnaby, BC, Canada                Bellingham, WA, USA
       V5J 5E9	98225

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       WWW: http://www.gravis.com         Email: ntsound@gravis.com
  _________________________________________________________________________

                    INSTALLATION INSTRUCTIONS AND README

                                 for the

                     UltraSound Plug & Play Windows NT
                Driver / Software Installation Instructions

                               Public Beta 1

                            -  May 15, l997  -
  _________________________________________________________________________


  CONTENTS

     1. Introduction
     2. Installation of the Windows NT Plug & Play Subsystem
     3. Running the UltraSound Plug & Play Windows NT Driver Uninstall
     4. Installing the UltraSound Plug & Play Windows NT drivers
     5. Installing the Joystick Driver from the Windows NT CD-ROM
     6. Using the 4 Megabyte RAM patch set from the UltraSound CD-ROM
     7. Using other RAM patch sets
     8. Troubleshooting


  1. INTRODUCTION

     Enclosed in this package are drivers and instructions for using the
     UltraSound Plug & Play in Windows NT. Please read through this document
     completely before beginning installation process.

     It is  recommended you print this file so you have the instructions
     handy during the installation process. It is also recommended that you
     copy all these files to a floppy in the A: drive and install from
     there.

     You must log into Windows NT as "administrator" otherwise the
     installation will not be successful.


  2. INSTALLATION OF THE WINDOWS NT PLUG & PLAY SUBSYSTEM

     The PnP subsystem of Windows NT 4.0 must be installed prior to
     installing the UltraSound drivers.  If the PnP subsystem is already
     installed, go to section 3.

     NOTE: The Windows NT PnP subsystem is not normally installed during the
           Windows NT installation process, even if you have ISA Plug & Play
	   cards in your system. Most people will need to follow this step.

     Step 1: Insert the Microsoft Windows NT 4.0 CD-ROM into your CD-ROM
             drive.

     Step 2: When the Windows NT setup screen show up, select "Browse this
             CD". (Alternatively you can browse using Windows Explorer).

     Step 3: Browse to the directory \DRVLIB\PNPISA\X86, right click on the
             file PNPISA.INF (the file that looks like a notepad) and select
	     "Install".

     Step 4: When prompted to restart your computer, select "Yes". When
             Windows NT restarts, you will need to follow the instructions
             in section 4.


  3. RUNNING THE ULTRASOUND PLUG & PLAY WINDOWS NT DRIVER UNINSTALL

     If you wish to install over existing UltraSound Plug & Play drivers, or
     you have previously installed the PnP subsystem but did not install any
     drivers for the UltraSound, you must follow this step.

     Step 1: Run UNINSTNT.EXE included in this package, either by selecting
             "Run" from the Start menu, or by double clicking on it from
             Windows Explorer.

     Step 2: Select OK to remove any drivers and clear the system registry
             of UltraSound Plug & Play information.

     Step 3: When prompted to restart your computer, select "Yes". When
             Windows NT restarts, you will need to follow the instructions
             in next section.


  4. INSTALLING THE ULTRASOUND PLUG & PLAY WINDOWS NT DRIVERS

     When Windows NT restarts after following the steps in section 2 or
     section 3, make sure you log in as "administrator". The installation
     proceeds as follows:

     Step 1: A "New Hardware Found - UltraSound Plug & Play (Synth & Codec)"
             dialog will appear, indicating Windows NT has found the
             UltraSound Plug & Play.

     Step 2: Select "Driver from disk provided by hardware manufacturer",
             then click "Ok".

     Step 3: At the "Install from disk" dialog, select A: drive and click
             "Ok". If you are not installing from drive A:, select "Browse"
             and browse to the directory where the UltraSound Plug & Play
             drivers are located.

     Step 4: Select "UltraSound Plug & Play Synth/Codec" and click "Ok".

     Step 5: The "Resources" screen should appear. If there are no conflicts,
             select "Ok". If there are conflicts, change the resource values
	     to clear them, then select "Ok".

	     NOTE: Windows NT does not alway correctly identify all
             conflicts. See the troubleshooting section below if you have
             audio problems after completing the installation.

     Step 6: If prompted for an IDE driver, select "Windows NT Default
             Driver", or "Do not install driver" if you do not wish to use
             the UltraSound's IDE interface.

     Step 7: At the "New Hardware Found - UltraSound Joystick Interface"
             select "Windows NT Default Driver", or if this option is grayed
             out, select "Do not install driver". You may also have to
             follow the instructions in the next section to enable joystick
             support.

     Step 8: Another "Resources" screen may appear for the joystick. If so,
             follow the instructions in step 5.

     Step 9: When prompted to restart, select "Yes". When Windows NT restarts,
             audio should be working correctly.


  5. INSTALLING THE JOYSTICK DRIVER FROM THE WINDOWS NT CD-ROM

     If your joystick is not working under Windows NT, follow these
     instructions.

     Step 1: Insert the Microsoft Windows NT 4.0 CD-ROM into your CD-ROM
             drive.

     Step 2: Open "Multimedia Properties" from the Control Panel.
             (Start->Settings->Control Panel, Multimedia).

     Step 3: Click the "Devices" tab.

     Step 4: Click "Add"

     Step 5: Select "Unlisted or Updated driver" and click "Ok".

     Step 6: Enter "Z:\DRVLIB\MULTIMED\JOYSTICK\X86" and click "Ok".

     Step 7: Select "Analog Joystick Driver" and click "Ok".

     Step 8: Select the joystick configuration to match you joystick.
             (The port should be 0x201).

     Step 9: When prompted to restart, select "Restart Now".


  6. USING THE 4 MEGABYTE RAM PATCH SET FROM THE ULTRASOUND CD-ROM

     If you have already installed the 4 megabyte patch set for use in
     Windows 95 or Windows 3.x, it should already be accessable in Windows
     NT, provided you installed it to the C:\GRAVIS\UTLRASND\PATCHES
     directory. Otherwise follow these steps.

     Step 1: Using EDIT, add the following line to C:\AUTOEXEC.BAT:

             SET INTERWAVE=C:\GRAVIS\ULTRASND

	     This line may already be there from a Windows 95/Windows 3.x
             installation.

     Step 2: Insert your UltraSound Plug & Play CD into your CD-ROM drive.

     Step 3: When the Setup runs, click the "4MB Patch Set" button.

     Step 4: Install the patch set to C:\GRAVIS\ULTRASND\PATCHES

     The patch set should now be accessable in Windows NT. To select it,
     load the "InterWave Properties" from control panel, select the "MIDI"
     tab, select the "4MB RAM Patch Set" and click "Ok".

     NOTE: If you really want to use the patch set from a different
           directory, you must change the IWDIR environment variable.
           To do this, run REGEDIT and change the key:

	   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\
           Session Manager\Environment\IWDIR


  7. USING OTHER RAM PATCH SETS

     If you have used other RAM patch sets with the UltraSound Plug & Play
     under Windows 95 or Windows 3.x, you would have had to edit the IW.INI
     file. The Windows NT drivers do not use the IW.INI file, instead they
     store all information in the system registry.

     To use you own patch set, you will need to manually edit the registry
     with regedit, by changing keys under HKEY_LOCAL_MACHINE\SYSTEM\
     CurrentControlSet\Services\guspnp\Parameters\Device0. Information is
     organised in the same manner as the IW.INI file, except that when
     defining patch directories, environment variables (such as IWDIR)
     can be automatically expanded.


  8. TROUBLESHOOTING

     The most common cause of problems are resource conflicts. Tell tale
     signs are system lockups when trying to play sound is being played
     (DMA channel conflict), or  looping sounds (IRQ conflict).
     Unfortunately Windows NT does not correctly identify all conflicts.

     If you think you have a DMA channel or IRQ conflict, try changing
     the resource value and restarting your system. Resources (and other
     UltraSound settings) can be changed in the "InterWave Properties"
     control panel applet.
     (Start->Settings->Control Panel, InterWave Properties).

  [END OF FILE]
