## Using Your DDK

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### Virtual ASPI Device Driver

Driver Description:

The Virtual ASPI device driver (VASPI) enables ASPI support for ASPI applications running in a DOS session. ASPI (Advanced SCSI Programming Interface) is an application interface that allows easier access to SCSI devices. Under DOS, users typically load an ASPI manager that routes all requests directly to the hardware. ASPI drivers, such as ASPIDISK and ASPICD, send requests to the ASPI manager, which then sends the command to the appropriate device.

Compilers/Assemblers Required:

           Microsoft MASM 5.1  (supplied with the DDK)
           Microsoft CL386     (supplied with the DDK)

Build Instructions:

1.Set the environment variables so the correct tools are picked up during the build.

    e.g., SET PATH=<drive>:\DDK\TOOLS;%PATH%

Where <drive> represents your DDK installed drive and DDK represents the DDK installed directory. On the CD-ROM, the TOOLS directory path is DDK\ TOOLS.

2.Change the directory to DDK\BASE\SRC\VDEV\VASPI.

3.Invoke NMAKE on the resident makefile.

Files Created by Successful Build:

         Directory:  \DDK\BASE\SRC\VDEV\VASPI

         o  VASPI.SYS