Microsoft KB Archive/898439

= FIX: If you set the ATA_FLAGS_48BIT_COMMAND ATA flag, the returned PreviousTaskFile member is incorrect in Windows Server 2003 or in Windows XP =

Article ID: 898439

Article Last Modified on 10/11/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Web Edition
 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition
 * Microsoft Windows Server 2003, Enterprise Edition for Itanium-based Systems
 * Microsoft Windows Server 2003, Standard x64 Edition
 * Microsoft Windows Server 2003, Enterprise x64 Edition
 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional

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SYMPTOMS
You can use the IOCTL_ATA_PASS_THROUGH structure or the IOCTL_ATA_PASS_THROUGH_DIRECT structure to send raw ATA commands to disk drives in a program. The ATA_FLAGS_48BIT_COMMAND ATA flag is introduced to enable 48-bit Logical Block Addressing (LBA) support in these structures.

However, if you set the ATA_FLAGS_48BIT_COMMAND ATA flag in these structures, the returned PreviousTaskFile member in the ATA_PASS_THROUGH_DIRECT structure or in the ATA_PASS_THROUGH_EX structure is incorrect in Microsoft Windows Server 2003 or in Microsoft Windows XP.



CAUSE
This problem occurs because of a bug in the Atapi.sys file. The bug causes the PreviousTaskFile member to be populated with incorrect data.



Service pack information
To resolve this problem, obtain the latest service pack for Windows Server 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

889100 How to obtain the latest service pack for Windows Server 2003

Prerequisites
You must have Windows Server 2003 Service Pack 1 (SP1) installed to apply this hotfix.

Restart requirement
You must restart the computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

Microsoft Windows Server 2003, x86-based versions with Service Pack 1   Date         Time   Version        Size    File name 06-Jul-2005 00:38  5.2.3790.2481  95,744  Atapi.sys Microsoft Windows Server 2003, Itanium-based versions with Service Pack 1   Date         Time   Version        Size     File name -  05-Jul-2005  11:39  5.2.3790.2481  309,248  Atapi.sys Microsoft Windows Server 2003, x64-based versions   Date         Time   Version        Size     File name -  05-Jul-2005  11:39  5.2.3790.2481  148,480  Atapi.sys

Hotfix information
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
You must have Windows XP Service Pack 2 (SP2) installed to apply this hotfix.

Restart requirement
You must restart the computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

Microsoft Windows XP, x86-based versions with Service Pack 2   Date         Time   Version        Size    File name 05-Jul-2005 23:45  5.1.2600.2714  95,616  Atapi.sys



STATUS
Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the &quot;Applies to&quot; section. This problem was first corrected in Windows Server 2003 Service Pack 2.



MORE INFORMATION
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional query words: full task register member field invalid data

Keywords: kbbug kbfix kbqfe kbhotfixserver kbwinserv2003sp2fix KB898439

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