Symptoms

Consider the following scenario:

  • You use a Microsoft .NET Framework 3.0-based client application that uses the HTTP protocol over Secure Sockets Layer (SSL) to access a Windows Communication Foundation (WCF) service.

  • A System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelRequest object is invoked on the client application.

  • You close the connection to the WCF service. Or, the WCF service becomes unavailable. A WebException exception is encountered.

In this scenario, the memory of the HttpChannelRequest object is not released. Therefore, a memory leak occurs, and the performance of the client application might decrease.

Resolution

Hotfix information

A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only 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 service pack that contains this hotfix.

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

http://support.microsoft.com/contactus/?ws=supportNote 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 the Microsoft .NET Framework 3.0 Service Pack 1 (SP1) installed on one of the following operating systems:

  • Windows Vista Service Pack 2 (SP2)

  • Windows Server 2008 Service Pack 2 (SP2)



Restart requirement

You have to restart the computer after you install this hotfix if the affected files are being used. 

We recommend that you exit all .NET Framework applications before you install this hotfix.

File information

The global 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.

For all supported x86-based versions of Windows Vista SP2 and of Windows Server 2008 SP2

File name

File version

File size

Date

Time

Platform

Smdiagnostics.dll

3.0.4506.5719

110,592

17-Aug-2011

10:55

x86

Smsvchost.exe

3.0.4506.5719

128,848

17-Aug-2011

10:55

x86

System.identitymodel.dll

3.0.4506.5719

442,368

17-Aug-2011

10:55

x86

System.runtime.serialization.dll

3.0.4506.5719

970,752

17-Aug-2011

10:55

x86

System.runtime.serialization.dll

3.0.4506.5719

970,752

17-Aug-2011

10:55

x86

System.servicemodel.dll

3.0.4506.5719

5,992,448

17-Aug-2011

10:55

x86

System.servicemodel.washosting.dll

3.0.4506.5719

32,768

17-Aug-2011

10:55

x86

System.servicemodel.dll

3.0.4506.5719

5,992,448

17-Aug-2011

10:55

x86

Servicemodel.mof

Not Applicable

85,113

28-Jul-2011

10:57

Not Applicable

Servicemodel.mof.uninstall

Not Applicable

896

12-Aug-2010

14:24

Not Applicable

Servicemonikersupport.dll

3.0.4506.5719

17,256

17-Aug-2011

10:55

x86

System.identitymodel.dll

3.0.4506.5719

442,368

17-Aug-2011

10:55

x86

System.runtime.serialization.dll

3.0.4506.5719

970,752

17-Aug-2011

10:55

x86

System.servicemodel.dll

3.0.4506.5719

5,992,448

17-Aug-2011

10:55

x86

For all supported x64-based versions of Windows Vista SP2 and of Windows Server 2008 SP2

File name

File version

File size

Date

Time

Platform

Servicemodel.mof

Not Applicable

85,113

28-Jul-2011

10:55

Not Applicable

Servicemodel.mof.uninstall

Not Applicable

896

12-Aug-2010

14:10

Not Applicable

Servicemonikersupport.dll

3.0.4506.5719

19,304

17-Aug-2011

10:53

x64

Smdiagnostics.dll

3.0.4506.5719

94,208

17-Aug-2011

10:53

x64

Smsvchost.exe

3.0.4506.5719

116,560

17-Aug-2011

10:53

x64

System.identitymodel.dll

3.0.4506.5719

401,408

17-Aug-2011

10:53

x64

System.runtime.serialization.dll

3.0.4506.5719

847,872

17-Aug-2011

10:53

x64

System.runtime.serialization.dll

3.0.4506.5719

847,872

17-Aug-2011

10:53

x64

System.servicemodel.dll

3.0.4506.5719

5,332,992

17-Aug-2011

10:53

x64

System.servicemodel.washosting.dll

3.0.4506.5719

32,768

17-Aug-2011

10:53

x64

System.servicemodel.dll

3.0.4506.5719

5,332,992

17-Aug-2011

10:53

x64

For all supported IA-64–version of Windows Server 2008 SP2

File name

File version

File size

Date

Time

Platform

Servicemodel.mof

Not Applicable

85,113

28-Jul-2011

11:26

Not Applicable

Servicemodel.mof.uninstall

Not Applicable

896

16-Aug-2010

14:36

Not Applicable

Servicemonikersupport.dll

3.0.4506.5719

33,640

17-Aug-2011

11:22

IA-64

Smdiagnostics.dll

3.0.4506.5719

94,208

17-Aug-2011

11:22

IA-64

Smsvchost.exe

3.0.4506.5719

116,560

17-Aug-2011

11:22

IA-64

System.identitymodel.dll

3.0.4506.5719

401,408

17-Aug-2011

11:22

IA-64

System.runtime.serialization.dll

3.0.4506.5719

847,872

17-Aug-2011

11:22

IA-64

System.runtime.serialization.dll

3.0.4506.5719

847,872

17-Aug-2011

11:22

IA-64

System.servicemodel.dll

3.0.4506.5719

5,332,992

17-Aug-2011

11:22

IA-64

System.servicemodel.washosting.dll

3.0.4506.5719

32,768

17-Aug-2011

11:22

IA-64

System.servicemodel.dll

3.0.4506.5719

5,332,992

17-Aug-2011

11:22

IA-64

Additional file information for x86-based versions of Windows Vista SP2 and of Windows Server 2008 SP2

File name

X86_wcf-m_sm_mof_31bf3856ad364e35_6.0.6002.22698_none_c6889df796aaae06.manifest

File version

Not Applicable

File size

3,093

Date (UTC)

17-Aug-2011

Time (UTC)

15:48

File name

X86_wcf-m_svc_mon_sup_dll_31bf3856ad364e35_6.0.6002.22698_none_a7f4d63462240f34.manifest

File version

Not Applicable

File size

12,285

Date (UTC)

17-Aug-2011

Time (UTC)

15:46

File name

X86_wcf-system.identitymodel_b03f5f7f11d50a3a_6.0.6002.22698_none_0ebefc585a6f686e.manifest

File version

Not Applicable

File size

5,464

Date (UTC)

17-Aug-2011

Time (UTC)

15:48

File name

X86_wcf-system.runtime.serialization_b03f5f7f11d50a3a_6.0.6002.22698_none_f05743a13aa5eed5.manifest

File version

Not Applicable

File size

3,062

Date (UTC)

17-Aug-2011

Time (UTC)

15:51

File name

X86_wcf-system.servicemodel_b03f5f7f11d50a3a_6.0.6002.22698_none_fe0f538d0565ac87.manifest

File version

Not Applicable

File size

8,172

Date (UTC)

17-Aug-2011

Time (UTC)

15:45

Additional file information for x64-based versions of Windows Vista SP2 and of Windows Server 2008 SP2

File name

Amd64_wcf-m_sm_mof_31bf3856ad364e35_6.0.6002.22698_none_22a7397b4f081f3c.manifest

File version

Not Applicable

File size

3,095

Date (UTC)

17-Aug-2011

Time (UTC)

15:48

File name

Amd64_wcf-m_svc_mon_sup_dll_31bf3856ad364e35_6.0.6002.22698_none_041371b81a81806a.manifest

File version

Not Applicable

File size

12,293

Date (UTC)

17-Aug-2011

Time (UTC)

15:46

File name

Amd64_wcf-smdiagnostics_b03f5f7f11d50a3a_6.0.6002.22698_none_0aa72e801dbae104.manifest

File version

Not Applicable

File size

4,081

Date (UTC)

17-Aug-2011

Time (UTC)

15:48

File name

Amd64_wcf-smsvchost_b03f5f7f11d50a3a_6.0.6002.22698_none_dc80889c686c95ec.manifest

File version

Not Applicable

File size

9,503

Date (UTC)

17-Aug-2011

Time (UTC)

15:48

File name

Amd64_wcf-system.identitymodel_b03f5f7f11d50a3a_6.0.6002.22698_none_c711c58145f33f68.manifest

File version

Not Applicable

File size

6,536

Date (UTC)

17-Aug-2011

Time (UTC)

15:47

File name

Amd64_wcf-system.runtime.serialization.ref_b03f5f7f11d50a3a_6.0.6002.22698_none_6dd2ffffd231cb36.manifest

File version

Not Applicable

File size

4,098

Date (UTC)

17-Aug-2011

Time (UTC)

15:51

File name

Amd64_wcf-system.runtime.serialization_b03f5f7f11d50a3a_6.0.6002.22698_none_a8aa0cca2629c5cf.manifest

File version

Not Applicable

File size

4,123

Date (UTC)

17-Aug-2011

Time (UTC)

15:51

File name

Amd64_wcf-system.servicemodel.ref_b03f5f7f11d50a3a_6.0.6002.22698_none_8a44f926774755b6.manifest

File version

Not Applicable

File size

11,157

Date (UTC)

17-Aug-2011

Time (UTC)

15:51

File name

Amd64_wcf-system.servicemodel.washosting_b03f5f7f11d50a3a_6.0.6002.22698_none_16fb6c88a4484d94.manifest

File version

Not Applicable

File size

4,413

Date (UTC)

17-Aug-2011

Time (UTC)

15:46

File name

Amd64_wcf-system.servicemodel_b03f5f7f11d50a3a_6.0.6002.22698_none_b6621cb5f0e98381.manifest

File version

Not Applicable

File size

28,378

Date (UTC)

17-Aug-2011

Time (UTC)

15:45

Additional file information for IA-64–based versions of Windows Server 2008 SP2

File name

Ia64_wcf-m_sm_mof_31bf3856ad364e35_6.0.6002.22698_none_c68a41ed96a8b702.manifest

File version

Not Applicable

File size

3,094

Date (UTC)

17-Aug-2011

Time (UTC)

15:46

File name

Ia64_wcf-m_svc_mon_sup_dll_31bf3856ad364e35_6.0.6002.22698_none_a7f67a2a62221830.manifest

File version

Not Applicable

File size

12,290

Date (UTC)

17-Aug-2011

Time (UTC)

15:45

File name

Ia64_wcf-smdiagnostics_b03f5f7f11d50a3a_6.0.6002.22698_none_52544319323741ee.manifest

File version

Not Applicable

File size

4,074

Date (UTC)

17-Aug-2011

Time (UTC)

15:46

File name

Ia64_wcf-smsvchost_b03f5f7f11d50a3a_6.0.6002.22698_none_242d9d357ce8f6d6.manifest

File version

Not Applicable

File size

9,493

Date (UTC)

17-Aug-2011

Time (UTC)

15:46

File name

Ia64_wcf-system.identitymodel_b03f5f7f11d50a3a_6.0.6002.22698_none_0ebeda1a5a6fa052.manifest

File version

Not Applicable

File size

6,521

Date (UTC)

17-Aug-2011

Time (UTC)

15:46

File name

Ia64_wcf-system.runtime.serialization.ref_b03f5f7f11d50a3a_6.0.6002.22698_none_b5801498e6ae2c20.manifest

File version

Not Applicable

File size

4,091

Date (UTC)

17-Aug-2011

Time (UTC)

15:48

File name

Ia64_wcf-system.runtime.serialization_b03f5f7f11d50a3a_6.0.6002.22698_none_f05721633aa626b9.manifest

File version

Not Applicable

File size

4,116

Date (UTC)

17-Aug-2011

Time (UTC)

15:49

File name

Ia64_wcf-system.servicemodel.ref_b03f5f7f11d50a3a_6.0.6002.22698_none_d1f20dbf8bc3b6a0.manifest

File version

Not Applicable

File size

11,126

Date (UTC)

17-Aug-2011

Time (UTC)

15:49

File name

Ia64_wcf-system.servicemodel.washosting_b03f5f7f11d50a3a_6.0.6002.22698_none_5ea88121b8c4ae7e.manifest

File version

Not Applicable

File size

4,405

Date (UTC)

17-Aug-2011

Time (UTC)

15:45

File name

Ia64_wcf-system.servicemodel_b03f5f7f11d50a3a_6.0.6002.22698_none_fe0f314f0565e46b.manifest

File version

Not Applicable

File size

28,347

Date (UTC)

17-Aug-2011

Time (UTC)

15:44


Status

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

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