Symptoms

An Internet Information Services (IIS)-based website may crash intermittently because a W3wp.exe process stops in Windows Server 2012 R2 when the operating system or an application tries to access a performance counter value during the shutdown process. This may cause system error events and prevent a graceful shutdown of the worker process.

Cause

This problem occurs because the memory that is allocated to the performance counter is already freed.

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 update in Windows Server 2012 R2, you must first have update 2919355 installed.

Restart requirement

You may 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 Server 2012 R2 file information and notesImportant Windows 8.1 and Windows Server 2012 R2 hotfixes are included in the same packages. However, only "Windows 8.1" 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 8.1" 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

    6.3.960 0.17xxx

    Windows Server 2012 R2

    RTM

    GDR

  • 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 8.1 and Windows Server 2012 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 x64-based versions of Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

Hwebcore.dll

8.5.9600.17787

17,408

01-Apr-2015

03:53

x64

Iiscore.dll

8.5.9600.17787

337,920

01-Apr-2015

03:51

x64

W3dt.dll

8.5.9600.17787

111,104

01-Apr-2015

03:57

x64

Iisw3adm.dll

8.5.9600.17787

570,880

01-Apr-2015

04:48

x64

W3tp.dll

8.5.9600.17787

28,160

01-Apr-2015

03:53

x64

W3wphost.dll

8.5.9600.17787

75,264

01-Apr-2015

03:46

x64

Wbhstipm.dll

8.5.9600.17787

30,208

01-Apr-2015

05:02

x64

Wbhst_pm.dll

8.5.9600.17787

28,160

01-Apr-2015

04:59

x64

Hwebcore.dll

8.5.9600.17787

15,360

01-Apr-2015

02:36

x86

Iiscore.dll

8.5.9600.17787

235,008

01-Apr-2015

02:34

x86

W3dt.dll

8.5.9600.17787

100,352

01-Apr-2015

02:35

x86

Iisw3adm.dll

8.5.9600.17787

501,248

01-Apr-2015

03:14

x86

W3tp.dll

8.5.9600.17787

22,016

01-Apr-2015

02:36

x86

W3wphost.dll

8.5.9600.17787

66,048

01-Apr-2015

02:31

x86

Wbhstipm.dll

8.5.9600.17787

25,600

01-Apr-2015

03:26

x86

Wbhst_pm.dll

8.5.9600.17787

25,088

01-Apr-2015

03:23

x86

Additional file information for Windows Server 2012 R2

Additional files for all supported x64-based versions of Windows Server 2012 R2

File name

Amd64_0c1650bf79543c84c45bd9b62264153f_31bf3856ad364e35_6.3.9600.17787_none_7130cf5c8c6439af.manifest

File version

Not applicable

File size

717

Date (UTC)

01-Apr-2015

Time (UTC)

17:14

File name

Amd64_21549e6639274d851ca872e795ad59ae_31bf3856ad364e35_6.3.9600.17787_none_2b439fe3818be346.manifest

File version

Not applicable

File size

721

Date (UTC)

01-Apr-2015

Time (UTC)

17:14

File name

Amd64_957c80a0f71d4030d71084e04e9f4812_31bf3856ad364e35_6.3.9600.17787_none_00929d8b53c7e0c9.manifest

File version

Not applicable

File size

717

Date (UTC)

01-Apr-2015

Time (UTC)

17:14

File name

Amd64_f762d68d10829dda13f5d7b12af7fc30_31bf3856ad364e35_6.3.9600.17787_none_6e3a18058176bddc.manifest

File version

Not applicable

File size

721

Date (UTC)

01-Apr-2015

Time (UTC)

17:14

File name

Amd64_microsoft-windows-i..rewebenginebinaries_31bf3856ad364e35_6.3.9600.17787_none_85c57cf0f9e1d508.manifest

File version

Not applicable

File size

6,943

Date (UTC)

01-Apr-2015

Time (UTC)

06:15

File name

Amd64_microsoft-windows-p..ellibrariesbinaries_31bf3856ad364e35_6.3.9600.17787_none_6b7d531142af7af8.manifest

File version

Not applicable

File size

11,790

Date (UTC)

01-Apr-2015

Time (UTC)

06:15

File name

Package_1_for_kb3048824~31bf3856ad364e35~amd64~~6.3.2.0.mum

File version

Not applicable

File size

3,379

Date (UTC)

01-Apr-2015

Time (UTC)

17:14

File name

Package_2_for_kb3048824~31bf3856ad364e35~amd64~~6.3.2.0.mum

File version

Not applicable

File size

3,154

Date (UTC)

01-Apr-2015

Time (UTC)

17:14

File name

Package_for_kb3048824_rtm_gm~31bf3856ad364e35~amd64~~6.3.2.0.mum

File version

Not applicable

File size

1,691

Date (UTC)

01-Apr-2015

Time (UTC)

17:14

File name

Package_for_kb3048824_rtm~31bf3856ad364e35~amd64~~6.3.2.0.mum

File version

Not applicable

File size

2,311

Date (UTC)

01-Apr-2015

Time (UTC)

17:14

File name

Wow64_microsoft-windows-i..rewebenginebinaries_31bf3856ad364e35_6.3.9600.17787_none_901a27432e429703.manifest

File version

Not applicable

File size

6,062

Date (UTC)

01-Apr-2015

Time (UTC)

04:39

File name

Wow64_microsoft-windows-p..ellibrariesbinaries_31bf3856ad364e35_6.3.9600.17787_none_75d1fd6377103cf3.manifest

File version

Not applicable

File size

10,115

Date (UTC)

01-Apr-2015

Time (UTC)

04:39


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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