TITLE: Microsoft ACPI.SYS Update (KB 840171)

VERSION: 840171 Rev. SP1a
DESCRIPTION:
IMPORTANT: Workstations running Microsoft Windows XP with Service Pack 2 (SP2) 
do not require this fix.

This package installs a Windows XP ACPI.SYS update for the listed workstation. 
The update fixes an issue where a Multifunction PC Card inserted in the PC Card 
slot is not recognized in Windows XP. This issue occurs because the Advanced 
Configuration and Power Interface (ACPI) driver does not correctly determine 
the hardware device type.

For more information about this issue, please refer to Microsoft Knowledge Base 
Article 840171, ''PC cards attached to a multifunction PCI-PCI bridge may not 
be recognized by the operating system.''
PURPOSE: Routine
SOFTPAQ NUMBER: SP28256
SUPERSEDES: None
EFFECTIVE DATE: November 1, 2004
CATEGORY: Operating System - Enhancements and QFEs
SSM SUPPORTED: Yes

PRODUCT TYPE(S):
Workstations

PRODUCT MODEL(S):
HP Workstation xw4100: All Models

OPERATING SYSTEM(S): 
Windows XP Professional

LANGUAGE(S): 
Chinese(PRC Simplified)
Dutch
French
German
Italian
Japanese
Korean
Spanish
Taiwanese Chinese
US English

ENHANCEMENTS: 
N/A

PREREQUISITES: 
N/A

HOW TO USE: 
1. Download the SoftPaq .EXE file to a directory on your hard drive.

2. Execute the downloaded file and follow the on-screen instructions.



Copyright (c) 2004 Hewlett-Packard Development Company, L.P.