Symptoms

If you use Windows Task Manager or the Perfmon /res command to start Resource Monitor on a computer that is running Windows 7 or Windows Server 2008 R2, the Perfmon.exe process crashes. Additionally, you receive an error message that resembles the following:

Faulting application name: perfmon.exe, version: 6.1.7601.17514, time stamp: 0x4ce7972c
Faulting module name: wdc.dll, version: 6.1.7601.21854, time stamp: 0x4eb38833
Exception code: 0xc0000005
Fault offset: 0x0000000000061a1c
Faulting process id: 0x548
Faulting application start time: 0x01ceb90f1d977b61
Faulting application path: C:\Windows\System32\perfmon.exe
Faulting module path: C:\Windows\System32\wdc.dll
Report Id: 63bef6f4-2502-11e3-bfa7-d89d671f169f


Cause

This problem occurs because of a race condition in the WDC.dll module.

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

To apply this hotfix, you must have Service Pack 1 for Windows 7 or Windows Server 2008 R2 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 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 7 and Windows Server 2008 R2 file information and notes

Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" 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, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.

    Version

    Product

    SR_Level

    Service branch

    6.1.760
    1.
    17xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    GDR

    6.1.760
    1.
    22xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    LDR

  • GDR service branches contain only those fixes that are widely released to address widespread, extremely important issues. LDR service branches contain hotfixes in addition to widely released fixes.

  • 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 7 and Windows Server 2008 R2" 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 7

File name

File version

File size

Date

Time

Platform

Pdhui.dll

6.1.7601.22561

47,104

08-Jan-2014

08:06

x86

Perfmon.exe

6.1.7601.17514

157,184

20-Nov-2010

12:17

x86

Perfmon.msc

Not applicable

145,519

10-Jun-2009

21:31

Not applicable

Resmon.exe

6.1.7600.16385

103,424

14-Jul-2009

01:14

x86

Sysmon.ocx

6.1.7601.22561

390,656

08-Jan-2014

08:06

x86

Wdc.dll

6.1.7601.22561

1,227,264

08-Jan-2014

08:07

x86

Wvc.dll

6.1.7601.22561

444,928

08-Jan-2014

08:07

x86

For all supported x64-based versions of Windows 7 and Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Pdhui.dll

6.1.7601.22561

58,880

08-Jan-2014

08:36

x64

Perfmon.exe

6.1.7601.17514

172,544

20-Nov-2010

13:25

x64

Perfmon.msc

Not applicable

145,519

10-Jun-2009

20:50

Not applicable

Resmon.exe

6.1.7600.16385

103,936

14-Jul-2009

01:39

x64

Sysmon.ocx

6.1.7601.22561

475,136

08-Jan-2014

08:36

x64

Wdc.dll

6.1.7601.22561

1,363,968

08-Jan-2014

08:37

x64

Wvc.dll

6.1.7601.22561

594,432

08-Jan-2014

08:37

x64

Pdhui.dll

6.1.7601.22561

47,104

08-Jan-2014

08:06

x86

Perfmon.exe

6.1.7601.17514

157,184

20-Nov-2010

12:17

x86

Perfmon.msc

Not applicable

145,519

10-Jun-2009

21:31

Not applicable

Resmon.exe

6.1.7600.16385

103,424

14-Jul-2009

01:14

x86

Sysmon.ocx

6.1.7601.22561

390,656

08-Jan-2014

08:06

x86

Wdc.dll

6.1.7601.22561

1,227,264

08-Jan-2014

08:07

x86

Wvc.dll

6.1.7601.22561

444,928

08-Jan-2014

08:07

x86

For all supported IA-64-based versions of Windows Server 2008 R2

File name

File version

File size

Date

Time

Platform

Pdhui.dll

6.1.7601.22561

136,192

08-Jan-2014

07:42

IA-64

Perfmon.exe

6.1.7601.17514

247,808

20-Nov-2010

10:23

IA-64

Perfmon.msc

Not applicable

145,519

10-Jun-2009

20:55

Not applicable

Resmon.exe

6.1.7600.16385

110,080

14-Jul-2009

01:44

IA-64

Sysmon.ocx

6.1.7601.22561

960,000

08-Jan-2014

07:43

IA-64

Wdc.dll

6.1.7601.22561

2,245,632

08-Jan-2014

07:43

IA-64

Wvc.dll

6.1.7601.22561

1,208,320

08-Jan-2014

07:43

IA-64

Pdhui.dll

6.1.7601.22561

47,104

08-Jan-2014

08:06

x86

Perfmon.exe

6.1.7601.17514

157,184

20-Nov-2010

12:17

x86

Perfmon.msc

Not applicable

145,519

10-Jun-2009

21:31

Not applicable

Resmon.exe

6.1.7600.16385

103,424

14-Jul-2009

01:14

x86

Sysmon.ocx

6.1.7601.22561

390,656

08-Jan-2014

08:06

x86

Wdc.dll

6.1.7601.22561

1,227,264

08-Jan-2014

08:07

x86

Wvc.dll

6.1.7601.22561

444,928

08-Jan-2014

08:07

x86

Additional file information

Additional file information for Windows 7 and Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7

File name

Package_1_for_kb2924171~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not applicable

File size

1,813

Date (UTC)

08-Jan-2014

Time (UTC)

13:00

Platform

Not applicable

File name

Package_2_for_kb2924171~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not applicable

File size

1,800

Date (UTC)

08-Jan-2014

Time (UTC)

13:00

Platform

Not applicable

File name

Package_for_kb2924171_sp1~31bf3856ad364e35~x86~~6.1.1.0.mum

File version

Not applicable

File size

1,903

Date (UTC)

08-Jan-2014

Time (UTC)

13:00

Platform

Not applicable

File name

X86_35d42ff667506642ef445792b7eaac20_31bf3856ad364e35_6.1.7601.22561_none_2df5c2b0064c6b5f.manifest

File version

Not applicable

File size

707

Date (UTC)

08-Jan-2014

Time (UTC)

13:00

Platform

Not applicable

File name

X86_microsoft-windows-performancetoolsgui_31bf3856ad364e35_6.1.7601.22561_none_9e619bba187f050f.manifest

File version

Not applicable

File size

32,568

Date (UTC)

08-Jan-2014

Time (UTC)

13:04

Platform

Not applicable

Additional files for all supported x64-based versions of Windows 7 and Windows Server 2008 R2

File name

Amd64_6aec0b6c11f6e2e006c86b9fd2411731_31bf3856ad364e35_6.1.7601.22561_none_169390816d2d12f5.manifest

File version

Not applicable

File size

1,064

Date (UTC)

08-Jan-2014

Time (UTC)

13:00

Platform

Not applicable

File name

Amd64_microsoft-windows-performancetoolsgui_31bf3856ad364e35_6.1.7601.22561_none_fa80373dd0dc7645.manifest

File version

Not applicable

File size

32,572

Date (UTC)

08-Jan-2014

Time (UTC)

13:08

Platform

Not applicable

File name

Package_1_for_kb2924171~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not applicable

File size

2,050

Date (UTC)

08-Jan-2014

Time (UTC)

13:00

Platform

Not applicable

File name

Package_2_for_kb2924171~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not applicable

File size

2,037

Date (UTC)

08-Jan-2014

Time (UTC)

13:00

Platform

Not applicable

File name

Package_for_kb2924171_sp1~31bf3856ad364e35~amd64~~6.1.1.0.mum

File version

Not applicable

File size

1,915

Date (UTC)

08-Jan-2014

Time (UTC)

13:00

Platform

Not applicable

File name

Wow64_microsoft-windows-performancetoolsgui_31bf3856ad364e35_6.1.7601.22561_none_04d4e190053d3840.manifest

File version

Not applicable

File size

25,078

Date (UTC)

08-Jan-2014

Time (UTC)

13:08

Platform

Not applicable

Additional files for all supported IA-64-based versions of Windows Server 2008 R2

File name

Ia64_ef9d15c39d8af66c85282c4dc740b71a_31bf3856ad364e35_6.1.7601.22561_none_975d8bbf4c0e4ba2.manifest

File version

Not applicable

File size

1,062

Date (UTC)

08-Jan-2014

Time (UTC)

13:00

Platform

Not applicable

File name

Ia64_microsoft-windows-performancetoolsgui_31bf3856ad364e35_6.1.7601.22561_none_9e633fb0187d0e0b.manifest

File version

Not applicable

File size

32,570

Date (UTC)

08-Jan-2014

Time (UTC)

13:01

Platform

Not applicable

File name

Package_1_for_kb2924171~31bf3856ad364e35~ia64~~6.1.1.0.mum

File version

Not applicable

File size

2,045

Date (UTC)

08-Jan-2014

Time (UTC)

13:00

Platform

Not applicable

File name

Package_for_kb2924171_sp1~31bf3856ad364e35~ia64~~6.1.1.0.mum

File version

Not applicable

File size

1,446

Date (UTC)

08-Jan-2014

Time (UTC)

13:00

Platform

Not applicable

File name

Wow64_microsoft-windows-performancetoolsgui_31bf3856ad364e35_6.1.7601.22561_none_04d4e190053d3840.manifest

File version

Not applicable

File size

25,078

Date (UTC)

08-Jan-2014

Time (UTC)

13:01

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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