02/08/94

This is the first BETA release of virtual ASPI for OS/2 2.1 that includes
support for the ASPI for Windows specification.

The following ASPI access methods are now supported:

        1) DOS ASPI in a VDM.
        2) DOS ASPI in a DOS boot image.
        3) ASPI for Windows in a Win-OS/2 session.
        4) DOS ASPI (using polling) in a Win-OS/2 session.

The following files are included as part of this BETA release:

1) VASPI.SYS - The virtual ASPI device driver
2) VDPX.SYS - A replacement virtual DPMI extended driver
3) OS2ASPI.DMD - An OS/2 ASPI manager that support VASPI.SYS
4) ASPISTUB.SYS - A stub driver for accessing VASPI.SYS from a DOS
                  boot image.
5) WINASPI.DLL - This DLL allows Win-OS/2 applications to make requests
                 using the ASPI for Windows convention. It is a replacement
                 for the DLL shipped with EZ-SCSI and is intended for OS/2
                 2.1 only.

Introduction

The ASPI support currently embedded within OS/2 2.1 allows any OS/2 
application to send commands to a SCSI device. However there are 
a large number of DOS and Windows applications that are could be
supported if there commands were routed to OS2ASPI.DMD

VASPI.SYS is a virtual device driver that will allow DOS applications
to issue SCSI commands that will be handled by OS2ASPI.DMD. If you
have an existing DOS ASPI application it should now be able to run
in a virtual DOS session under OS/2 2.1. 

Installation Instructions for VASPI Support

1) Install OS/2 2.1 on your system
2) Make a backup copy of the file OS2ASPI.DMD. This should be found
   in the \OS2 directory on your boot drive.
3) Copy the new VDD aware version of OS2ASPI.DMD into the \OS2 directory.
4) Copy the file VASPI.SYS into the directory \OS2\MDOS on your boot drive.
5) Make a backup copy of the file VDPX.SYS. This should be found in
   the \OS2\MDOS directory on your boot drive.
6) Copy the new BETA version of VDPX.SYS into the \OS2\MDOS directory.
7) Copy the file WINASPI.DLL into the \OS2\MDOS\WINOS2 directory. 
5) Update CONFIG.SYS as follows:
        a) Make sure the line BASEDEV=OS2ASPI.DMD is present somewhere
           in the file.

        b) Add the line DEVICE=C:\OS2\MDOS\VASPI.SYS to the bottom of
           the file. If your boot drive is NOT C:, use the appropriate 
           letter instead.

6) Shutdown your system and reboot.
7) Open a DOS window or DOS fullscreen and run your ASPI application.

Installation Instructions for DOS Boot Image Support

1) Follow all the instructions for VDM Support.
2) Read the instructions for creating an image diskette in the OS/2
   Master Help Index.
3) Create the boot disk with all the files that you will require for 
   other applications.
4) Add the file ASPISTUB.SYS to this boot disk and add the line 
   DEVICE=\ASPISTUB.SYS to CONFIG.SYS on the boot disk.
5) Complete the boot image creation.
6) Open the image.

When you find a problem with VASPI.SYS, please send a description of
it to Adaptec so that we can attempt to reproduce it. Please describe 
the exact steps  required to reproduce your problem and include any 
screen dumps from the system where the problem occurred.

There are several methods available for reporting problems:

1) The Adaptec BBS. The BBS can be reached at (408) 945-7727 and supports
   upto 14.4K baud with 8 data bits, no parity and 1 stop bit. Please send
   a PRIVATE message to the user VASPI_BETA.

2) Internet. You can send problem reports to the user vaspi@adaptex.cirr.com.