Method and apparatus for providing dynamic entry points into a s

Details Method and apparatus for providing dynamic entry points into a s Method and apparatus for providing dynamic entry points into a s

1996-03-15

1999-03-23

Oberley, Alvin

G06F 900

Patent

active

058871691

ABSTRACT:
A technique for enhancing a software layer while ensuring backwards compatibility is disclosed. In one implementation, the software layer is a hardware abstraction layer (HAL) that interfaces between hardware and an operating system of a computer system. The HAL can be enhanced with additional functionality without having to worry about crashing the operating system when the particular HAL in use with the computer system lacks the additional functionality. Hence, the inventive technique allows enhancements to the HAL to be made without causing any backwards compatible problems.

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"Windows NT Resource Kit," Windows NT Resource Guide, Microsoft Press 1995, pp. 1-30 and 173-175.

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