DSPINSTL, the display driver installation utility program, is similar in some ways to the OS/2 Device Driver Installation utility program, DDINSTAL.EXE. DSPINSTL contains extensions that are specifically geared to simplify the steps that the user must perform to install and configure OS/2 display drivers. Because different types of OS/2 display drivers can have radically different installation and configuration requirements, DSPINSTL contains a set of features that allows a display driver developer to customize the installation process to meet the developer's special needs.

DSPINSTL consists of the following six major components:

• DSPINSTL Configuration File (DSC file) Interpreter

• Initial User Interface PM Panels - A standard set of PM panels that serve as a basic front-end user interface (see User Interface PM Panels).

• Action Routine Interface - An interface that allows the display driver developer to (optionally) add custom control logic (see Action Routine Interface).

• Service Functions - A set of standard service functions that can be called from within an action routine (see reference to service functions under Action Routine Interface and DSPINSTL Service Functions).

• Command Language PM Panels - A standard set of PM panels that act as the front end to the DSPINSTL Command Language Interpreter (see Command Language Presentation Manager Panels).

• Command Language Interpreter - The final stage of DSPINSTL that executes the installation and configuration commands that are packed in Display Driver Profile files (DSP files) (see DSPINSTL Command Language Interpreter).