Error message when you log off from a Terminal Services session on a Windows Server 2003 Service Pack 1-based Terminal Server: "Stop 0x000000AB SESSION_HAS_VALID_POOL_ON

RESOLUTION

Hotfix information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows Server 2003 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

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

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

To apply this hotfix, you must have Windows Server 2003 Service Pack 1 (SP1) installed on your computer.

Restart requirement

You must restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix includes hotfix 901150 and fixes other issues that were not fixed in hotfix 901150.

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 item in Control Panel.Windows Server 2003, x86-based versions

File name	File version	File size	Date	Time	Platform	SP requirement	Service branch
Gdi32.dll	5.2.3790.2654	282,112	07-Mar-2006	03:47	x86	SP1	SP1QFE
Win32k.sys	5.2.3790.2654	1,850,880	07-Mar-2006	02:45	x86	SP1	SP1QFE

Windows Server 2003, x64-based versions

File name	File version	File size	Date	Time	Platform	SP requirement	Service branch
Gdi32.dll	5.2.3790.2654	610,304	06-Mar-2006	14:46	x64	SP1	SP1QFE
Win32k.sys	5.2.3790.2654	4,529,152	06-Mar-2006	14:46	x64	SP1	SP1QFE
Wgdi32.dll	5.2.3790.2654	285,184	06-Mar-2006	14:46	x86	SP1	WOW

Windows Server 2003, Itanium-based versions

File name	File version	File size	Date	Time	Platform	SP requirement	Service branch
Gdi32.dll	5.2.3790.2654	907,776	06-Mar-2006	14:46	IA-64	SP1	SP1QFE
Win32k.sys	5.2.3790.2654	5,553,152	06-Mar-2006	14:46	IA-64	SP1	SP1QFE
Wgdi32.dll	5.2.3790.2654	285,184	06-Mar-2006	14:46	x86	SP1	WOW

MORE INFORMATION

You receive the following error message on a blue screen:

Stop 0x000000AB SESSION_HAS_VALID_POOL_ON_EXIT (parameter1, parameter2, parameter3, parameter4)

This error message indicates that a session unload occurred when a session driver still held memory.

The four parameters in the error message correspond to the following descriptions.

Parameter	Description
1	The session ID
2	The number of paged pool bytes that are leaking
3	The number of nonpaged pool bytes that are leaking
4	The total number of paged and nonpaged allocations that are leaking

Note The number of nonpaged allocations are in the upper half of this word. The number of paged allocations are in the bottom half of this word.

Technical support for x64-based versions of Microsoft Windows

Your hardware manufacturer provides technical support and assistance for x64-based versions of Windows. Your hardware manufacturer provides support because an x64-based version of Windows was included with your hardware. Your hardware manufacturer might have customized the installation of Windows with unique components. Unique components might include specific device drivers or might include optional settings to maximize the performance of the hardware. Microsoft will provide reasonable-effort assistance if you need technical help with your x64-based version of Windows. However, you might have to contact your manufacturer directly. Your manufacturer is best qualified to support the software that your manufacturer installed on the hardware.

For product information about Microsoft Windows XP Professional x64 Edition, visit the following Microsoft Web site:

http://www.microsoft.com/windowsxp/64bit/default.mspx

For product information about x64-based versions of Microsoft Windows Server 2003, visit the following Microsoft Web site:

http://www.microsoft.com/windowsserver2003/64bit/x64/default.mspx

For more information, 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

Error message when you log off from a Terminal Services session on a Windows Server 2003 Service Pack 1-based Terminal Server: "Stop 0x000000AB SESSION_HAS_VALID_POOL_ON_EXIT" (910362)

SYMPTOMS