Symptoms

Consider the following scenario:

  • You are connected to an Exchange server that is based on a server that is running Windows Server 2012.

  • You run PowerShell commands for Exchange.


In this scenario, you may find that the W3wp.exe process has high CPU usage. This causes Exchange failures or significant decrease in performance issues.

Cause

This problem occurs because of a deadlock situation in Web Services for Management (WS-Management).

Resolution

Hotfix information

A supported hotfix is available from Microsoft Support. 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 the problem described in this article. 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, go to the following Microsoft website:

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.

Prerequisites

There are no prerequisites for installing this hotfix.





Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any previously released hotfix.

The English (United States) version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows 8 and Windows Server 2012 file information and notesImportant Windows 8 and Windows Server 2012 hotfixes are included in the same packages. However, only "Windows 8" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.

  • The files that apply to a specific product, milestone (RTM,SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    Milestone

    Service branch

    6.2.920 0.16 xxx

    Windows 8 and Windows Server 2012

    RTM

    GDR

    6.2.920 0.21 xxx

    Windows 8 and Windows Server 2012

    RTM

    LDR

  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows 8 and Windows Server 2012" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.

For all supported x86-based versions of Windows 8

File name

File version

File size

Date

Time

Platform

Winrm.cmd

Not applicable

35

02-Jun-2012

14:34

Not applicable

Winrm.vbs

Not applicable

204,105

02-Jun-2012

14:34

Not applicable

Wsmagent.dll

6.2.9200.16384

24,064

26-Jul-2012

03:20

x86

Wsmagent.mof

Not applicable

822

02-Jun-2012

14:34

Not applicable

Wsmagentuninstall.mof

Not applicable

754

02-Jun-2012

14:34

Not applicable

Wsmanconfig_schema.xml

Not applicable

4,675

02-Jun-2012

14:34

Not applicable

Wsmanhttpconfig.exe

6.2.9200.16384

30,208

26-Jul-2012

03:21

x86

Wsmanmigrationplugin.dll

6.2.9200.16384

56,832

26-Jul-2012

03:20

x86

Wsmauto.dll

6.2.9200.16384

138,240

26-Jul-2012

03:20

x86

Wsmauto.mof

Not applicable

4,430

02-Jun-2012

14:34

Not applicable

Wsmplpxy.dll

6.2.9200.16384

10,752

26-Jul-2012

03:20

x86

Wsmprovhost.exe

6.2.9200.16384

35,840

26-Jul-2012

03:21

x86

Wsmpty.xsl

Not applicable

1,559

02-Jun-2012

14:34

Not applicable

Wsmres.dll

6.2.9200.16384

60,416

26-Jul-2012

02:44

x86

Wsmsvc.dll

6.2.9200.21178

2,044,416

16-Jul-2014

22:34

x86

Wsmtxt.xsl

Not applicable

2,426

02-Jun-2012

14:34

Not applicable

Wsmwmipl.dll

6.2.9200.21178

227,328

16-Jul-2014

22:34

x86

For all supported x64-based versions of Windows 8 and Windows Server 2012

File name

File version

File size

Date

Time

Platform

Winrm.cmd

Not applicable

35

02-Jun-2012

14:34

Not applicable

Winrm.vbs

Not applicable

204,105

02-Jun-2012

14:34

Not applicable

Wsmagent.dll

6.2.9200.16384

29,696

26-Jul-2012

03:08

x64

Wsmagent.mof

Not applicable

822

02-Jun-2012

14:34

Not applicable

Wsmagentuninstall.mof

Not applicable

754

02-Jun-2012

14:34

Not applicable

Wsmanconfig_schema.xml

Not applicable

4,675

02-Jun-2012

14:34

Not applicable

Wsmanhttpconfig.exe

6.2.9200.16384

28,672

26-Jul-2012

03:08

x64

Wsmanmigrationplugin.dll

6.2.9200.16384

66,560

26-Jul-2012

03:08

x64

Wsmauto.dll

6.2.9200.16384

156,672

26-Jul-2012

03:08

x64

Wsmauto.mof

Not applicable

4,430

02-Jun-2012

14:34

Not applicable

Wsmplpxy.dll

6.2.9200.16384

14,336

26-Jul-2012

03:08

x64

Wsmprovhost.exe

6.2.9200.16384

30,720

26-Jul-2012

03:08

x64

Wsmpty.xsl

Not applicable

1,559

02-Jun-2012

14:34

Not applicable

Wsmres.dll

6.2.9200.16384

60,416

26-Jul-2012

02:34

x64

Wsmsvc.dll

6.2.9200.21178

2,838,016

16-Jul-2014

22:30

x64

Wsmtxt.xsl

Not applicable

2,426

02-Jun-2012

14:34

Not applicable

Wsmwmipl.dll

6.2.9200.21178

309,248

16-Jul-2014

22:30

x64

Winrm.cmd

Not applicable

35

02-Jun-2012

14:34

Not applicable

Winrm.vbs

Not applicable

204,105

02-Jun-2012

14:34

Not applicable

Wsmagent.dll

6.2.9200.16384

24,064

26-Jul-2012

03:20

x86

Wsmagent.mof

Not applicable

822

02-Jun-2012

14:34

Not applicable

Wsmagentuninstall.mof

Not applicable

754

02-Jun-2012

14:34

Not applicable

Wsmanconfig_schema.xml

Not applicable

4,675

02-Jun-2012

14:34

Not applicable

Wsmanhttpconfig.exe

6.2.9200.16384

30,208

26-Jul-2012

03:21

x86

Wsmanmigrationplugin.dll

6.2.9200.16384

56,832

26-Jul-2012

03:20

x86

Wsmauto.dll

6.2.9200.16384

138,240

26-Jul-2012

03:20

x86

Wsmauto.mof

Not applicable

4,430

02-Jun-2012

14:34

Not applicable

Wsmplpxy.dll

6.2.9200.16384

10,752

26-Jul-2012

03:20

x86

Wsmprovhost.exe

6.2.9200.16384

35,840

26-Jul-2012

03:21

x86

Wsmpty.xsl

Not applicable

1,559

02-Jun-2012

14:34

Not applicable

Wsmres.dll

6.2.9200.16384

60,416

26-Jul-2012

02:44

x86

Wsmsvc.dll

6.2.9200.21178

2,044,416

16-Jul-2014

22:34

x86

Wsmtxt.xsl

Not applicable

2,426

02-Jun-2012

14:34

Not applicable

Wsmwmipl.dll

6.2.9200.21178

227,328

16-Jul-2014

22:34

x86

Additional file information for Windows 8 and Windows Server 2012

Additional files for all supported x86-based versions of Windows 8

File name

X86_46db4c051e95a6ff3e06141a3ac6599a_31bf3856ad364e35_6.2.9200.21179_none_07f549bf9ea1a863.manifest

File version

Not applicable

File size

720

Date (UTC)

23-Jul-2014

Time (UTC)

21:17

Platform

Not applicable

File name

X86_microsoft-windows-w..for-management-core_31bf3856ad364e35_6.2.9200.21179_none_c7a9d2ef977fb5ce.manifest

File version

Not applicable

File size

195,191

Date (UTC)

23-Jul-2014

Time (UTC)

21:17

Platform

Not applicable

Additional files for all supported x64-based versions of Windows 8 and Windows Server 2012

File name

Amd64_59a9d5b9c9fc36407add8645968bdf83_31bf3856ad364e35_6.2.9200.21179_none_76f95a9c203aa30d.manifest

File version

Not applicable

File size

1,090

Date (UTC)

23-Jul-2014

Time (UTC)

21:20

Platform

Not applicable

File name

Amd64_microsoft-windows-w..for-management-core_31bf3856ad364e35_6.2.9200.21179_none_23c86e734fdd2704.manifest

File version

Not applicable

File size

195,199

Date (UTC)

23-Jul-2014

Time (UTC)

21:20

Platform

Not applicable

File name

Wow64_microsoft-windows-w..for-management-core_31bf3856ad364e35_6.2.9200.21179_none_2e1d18c5843de8ff.manifest

File version

Not applicable

File size

191,314

Date (UTC)

23-Jul-2014

Time (UTC)

21:20

Platform

Not applicable


Status

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

References

Learn about the terminology that Microsoft uses to describe software updates.

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