Interrupt 21h ROM client loader and payload delivery method

Electrical computers and digital processing systems: support – Digital data processing system initialization or configuration – Loading initialization program

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

06915418

ABSTRACT:
An interrupt 21h read only memory (ROM) client loader that allows firmware that is tightly coupled to a platform, such as a BIOS on a motherboard, for example, to present an operating system with installed applications. The interrupt 21h ROM client loader allows ROM-based applications to be installed on a storage device using native (DOS) filing system services of the operating system. The Int 21h ROM client loader comprises software code residing in flash memory that gauges the time when DOS filing system services are stable enough to permit execution of a payload delivery application to deliver the payload to the storage device. The Int 21h ROM client loader interacts with the DOS filing system to determine the time to execute the payload delivery application. This is triggered when an operating system Int 13h call is made to the BIOS which is read by the Int 21h ROM client loader and which thereafter invokes the payload delivery application to deliver the payload to the storage device.

REFERENCES:
patent: 5307497 (1994-04-01), Feigenbaum et al.
patent: 5887164 (1999-03-01), Gupta
patent: 5913058 (1999-06-01), Bonola
patent: 6112303 (2000-08-01), Stancil
patent: 6578142 (2003-06-01), Anderson et al.
Peter Szor, “Nexiv_Der”, Virus Bulletin, Apr. 1996.
Compaq, Phoenix, Intel, “BIOS Boot Specification”, Version 1.01, Jan. 11, 1996.
IBM, “PC DOS 7 Technical Update”, Document Number GG24-4459-00, pp. 107-141, Feb. 1995.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Interrupt 21h ROM client loader and payload delivery method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interrupt 21h ROM client loader and payload delivery method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interrupt 21h ROM client loader and payload delivery method will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3404763

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.