A memory leak may occur in the nonpaged pool memory on the Windows Server 2008-based terminal server when you log on to and log off from a Windows Server 2008-based terminal server through an RDP connection

Symptoms

When you log on to and log off from a Windows Server 2008-based terminal server through a Remote Desktop Protocol (RDP) connection, a memory leak may occur in the nonpaged pool memory on the Windows Server 2008-based terminal server.

This issue causes a decrease in the performance of the computer. This issue may even cause the computer to stop responding (hang) if you log on and log off many times. If you use the System Performance Monitor tool (Perfmon.exe) to monitor the system memory, the tool shows a consistent increase in the nonpaged pool memory usage.

Resolution

Hotfix information

A supported hotfix is 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 software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=supportNote The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.

Prerequisites

To apply this hotfix, you must have Windows Vista Service Pack 1or Window Server 2008 installed.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information


This hotfix does not replace any other previously released 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 item in Control Panel.

Windows Vista SP1 and Windows Server 2008, x86-based versions

File name

File version

File size

Date

Time

Platform

Package_1_for_kb950086~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,774

19-May-2008

20:14

Not Applicable

Package_2_for_kb950086~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,941

19-May-2008

20:14

Not Applicable

Package_3_for_kb950086~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,779

19-May-2008

20:14

Not Applicable

Package_4_for_kb950086~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,779

19-May-2008

20:14

Not Applicable

Package_5_for_kb950086~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,779

19-May-2008

20:14

Not Applicable

Package_6_for_kb950086~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,775

19-May-2008

20:14

Not Applicable

Package_for_kb950086_client_0~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,426

19-May-2008

20:14

Not Applicable

Package_for_kb950086_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,367

19-May-2008

20:14

Not Applicable

Package_for_kb950086_client~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,713

19-May-2008

20:14

Not Applicable

Package_for_kb950086_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,421

19-May-2008

20:14

Not Applicable

Package_for_kb950086_sc~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,423

19-May-2008

20:14

Not Applicable

Package_for_kb950086_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,425

19-May-2008

20:14

Not Applicable

Package_for_kb950086_server~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,431

19-May-2008

20:14

Not Applicable

Package_for_kb950086_winpesrv_0~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,422

19-May-2008

20:14

Not Applicable

Package_for_kb950086_winpesrv~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,430

19-May-2008

20:14

Not Applicable

Package_for_kb950086_winpe_0~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,420

19-May-2008

20:14

Not Applicable

Package_for_kb950086_winpe~31bf3856ad364e35~x86~~6.0.1.0.mum

Not Applicable

1,424

19-May-2008

20:14

Not Applicable

Update.mum

Not Applicable

3,571

19-May-2008

20:14

Not Applicable

X86_5a096281ab834113af4c95c3ffd5cdb3_31bf3856ad364e35_6.0.6000.20836_none_0adea7754d9be87c.manifest

Not Applicable

694

19-May-2008

20:14

Not Applicable

X86_c0877251c1ec4ffc8af365972431e65e_31bf3856ad364e35_6.0.6001.22181_none_3be3b5570a99c5a2.manifest

Not Applicable

694

19-May-2008

20:14

Not Applicable

X86_microsoft-windows-win32k_31bf3856ad364e35_6.0.6000.20836_none_b77c6bbdb690c19d.manifest

Not Applicable

6,543

17-May-2008

04:31

Not Applicable

X86_microsoft-windows-win32k_31bf3856ad364e35_6.0.6001.22181_none_b927976fb3e46269.manifest

Not Applicable

6,543

17-May-2008

04:42

Not Applicable

Win32k.sys

6.0.6000.20836

2,028,544

17-May-2008

00:59

x86

Win32k.sys

6.0.6001.22181

2,032,128

17-May-2008

00:59

x86

Windows Vista SP1 and Windows Server 2008, x64-based versions

File name

File version

File size

Date

Time

Platform

Amd64_1a578c59c5312188287a47c3d81e5afd_31bf3856ad364e35_6.0.6001.22181_none_ddf5b8286f02b543.manifest

Not Applicable

698

19-May-2008

20:14

Not Applicable

Amd64_7bc4160e09ee9a0fe6f8471dc1b26206_31bf3856ad364e35_6.0.6001.22181_none_cb056d3472e93284.manifest

Not Applicable

1,038

19-May-2008

20:14

Not Applicable

Amd64_7ec6f6708786a215b4e96480d211287a_31bf3856ad364e35_6.0.6000.20836_none_62fd7242653d26e0.manifest

Not Applicable

1,038

19-May-2008

20:14

Not Applicable

Amd64_9a358e191750779765737c84204564aa_31bf3856ad364e35_6.0.6000.20836_none_1cf69f581c6b6432.manifest

Not Applicable

698

19-May-2008

20:14

Not Applicable

Amd64_microsoft-windows-win32k_31bf3856ad364e35_6.0.6000.20836_none_139b07416eee32d3.manifest

Not Applicable

6,559

17-May-2008

04:37

Not Applicable

Amd64_microsoft-windows-win32k_31bf3856ad364e35_6.0.6001.22181_none_154632f36c41d39f.manifest

Not Applicable

6,559

17-May-2008

11:22

Not Applicable

Package_1_for_kb950086~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,784

19-May-2008

20:14

Not Applicable

Package_2_for_kb950086~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

2,167

19-May-2008

20:14

Not Applicable

Package_3_for_kb950086~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

2,003

19-May-2008

20:14

Not Applicable

Package_4_for_kb950086~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

2,003

19-May-2008

20:14

Not Applicable

Package_5_for_kb950086~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

2,003

19-May-2008

20:14

Not Applicable

Package_6_for_kb950086~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,785

19-May-2008

20:14

Not Applicable

Package_for_kb950086_client_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,434

19-May-2008

20:14

Not Applicable

Package_for_kb950086_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,375

19-May-2008

20:14

Not Applicable

Package_for_kb950086_client~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,723

19-May-2008

20:14

Not Applicable

Package_for_kb950086_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,429

19-May-2008

20:14

Not Applicable

Package_for_kb950086_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,431

19-May-2008

20:14

Not Applicable

Package_for_kb950086_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,433

19-May-2008

20:14

Not Applicable

Package_for_kb950086_server~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,439

19-May-2008

20:14

Not Applicable

Package_for_kb950086_winpesrv_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,430

19-May-2008

20:14

Not Applicable

Package_for_kb950086_winpesrv~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,438

19-May-2008

20:14

Not Applicable

Package_for_kb950086_winpe_0~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,428

19-May-2008

20:14

Not Applicable

Package_for_kb950086_winpe~31bf3856ad364e35~amd64~~6.0.1.0.mum

Not Applicable

1,432

19-May-2008

20:14

Not Applicable

Update.mum

Not Applicable

3,597

19-May-2008

20:14

Not Applicable

Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.0.6000.20836_none_1defb193a34ef4ce.manifest

Not Applicable

5,013

17-May-2008

04:24

Not Applicable

Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.0.6001.22181_none_1f9add45a0a2959a.manifest

Not Applicable

5,013

17-May-2008

04:34

Not Applicable

Win32k.sys

6.0.6000.20836

2,750,976

17-May-2008

01:15

x64

Win32k.sys

6.0.6001.22181

2,741,760

17-May-2008

01:34

x64

Windows Vista SP1 and Windows Server 2008, Itanium-based versions

File name

File version

File size

Date

Time

Platform

Ia64_45ad6db8aff776b2a8902629edf6ce60_31bf3856ad364e35_6.0.6001.22181_none_00fcd92fa7f900ab.manifest

Not Applicable

1,036

19-May-2008

20:13

Not Applicable

Ia64_92269b95ecc0640957c68053c7888200_31bf3856ad364e35_6.0.6001.22181_none_94a5d664f882ba33.manifest

Not Applicable

696

19-May-2008

20:13

Not Applicable

Ia64_microsoft-windows-win32k_31bf3856ad364e35_6.0.6001.22181_none_b9293b65b3e26b65.manifest

Not Applicable

6,551

17-May-2008

05:28

Not Applicable

Package_1_for_kb950086~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not Applicable

1,779

19-May-2008

20:13

Not Applicable

Package_2_for_kb950086~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not Applicable

1,998

19-May-2008

20:13

Not Applicable

Package_3_for_kb950086~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not Applicable

1,998

19-May-2008

20:13

Not Applicable

Package_for_kb950086_sc_0~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not Applicable

1,425

19-May-2008

20:13

Not Applicable

Package_for_kb950086_sc~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not Applicable

1,426

19-May-2008

20:13

Not Applicable

Package_for_kb950086_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not Applicable

1,429

19-May-2008

20:13

Not Applicable

Package_for_kb950086_server~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not Applicable

1,434

19-May-2008

20:13

Not Applicable

Package_for_kb950086_winpesrv_0~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not Applicable

1,426

19-May-2008

20:13

Not Applicable

Package_for_kb950086_winpesrv~31bf3856ad364e35~ia64~~6.0.1.0.mum

Not Applicable

1,433

19-May-2008

20:13

Not Applicable

Update.mum

Not Applicable

2,423

19-May-2008

20:13

Not Applicable

Wow64_microsoft-windows-win32k_31bf3856ad364e35_6.0.6001.22181_none_1f9add45a0a2959a.manifest

Not Applicable

5,013

17-May-2008

04:34

Not Applicable

Win32k.sys

6.0.6001.22181

6,639,104

17-May-2008

01:16

IA-64

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

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



For help with system performance issues in Windows Vista, visit the following Microsoft web page:

Problems with overall system speed and system performance

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