Windows MultiPoint Server occasionally crashes when you start the WMS shell in Windows Server 2012 R2 or Windows Server 2012

Symptoms

You use Windows MultiPoint Server (WMS) on a computer that is running Windows Server 2012 R2 or Windows Server 2012. In this case, you may find that WMS occasionally crashes when you start the WMS shell.

Cause

This problem occurs because of a synchronization problem in WinmmBase.dll.

Resolution

We have released updates for Windows Server 2012 R2 or Windows 8.1, and we have released hotfixes for Windows Server 2012 R2, Windows 8.1, Windows Server 2012, or Windows 8.

Update information for Windows Server 2012 R2 or Windows 8.1

The following update rollup is available for Windows Server 2012 R2 or Windows 8.1.

Get update rollup 2975719

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 be running one of the following operating systems:

  • Windows 8.1

  • Windows 8

  • Windows Server 2012 R2

  • Windows Server 2012


Additionally, you must first install update 2919355 in Windows 8.1 or Windows Server 2012 R2.

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 0.16xxx

    Windows 8 and Windows Server 2012

    RTM

    GDR

    6.2.920 0.20xxx

    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

Winmm.dll

6.2.9200.16384

125,440

26-Jul-2012

03:20

x86

Winmmbase.dll

6.2.9200.20998

159,744

25-Mar-2014

04:32

x86

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

File name

File version

File size

Date

Time

Platform

Winmm.dll

6.2.9200.16384

115,712

26-Jul-2012

03:07

x64

Winmmbase.dll

6.2.9200.20998

183,808

25-Mar-2014

05:00

x64

Winmm.dll

6.2.9200.16384

125,440

26-Jul-2012

03:20

x86

Winmmbase.dll

6.2.9200.20998

159,744

25-Mar-2014

04:32

x86

Windows 8.1 and 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 8.1 and 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 x86-based versions of Windows 8.1

File name

File version

File size

Date

Time

Platform

Winmm.dll

6.3.9600.17078

128,568

25-Mar-2014

01:20

x86

Winmmbase.dll

6.3.9600.17080

127,544

25-Mar-2014

01:20

x86

For all supported x64-based versions of Windows 8.1 and of Windows Server 2012 R2

File name

File version

File size

Date

Time

Platform

Winmm.dll

6.3.9600.17078

123,920

25-Mar-2014

02:27

x64

Winmmbase.dll

6.3.9600.17080

160,600

25-Mar-2014

02:27

x64

Winmm.dll

6.3.9600.17078

128,568

25-Mar-2014

01:20

x86

Winmmbase.dll

6.3.9600.17080

127,544

25-Mar-2014

01:20

x86

Additional file information

Additional file information for Windows 8 and Windows Server 2012

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

File name

X86_f3c2eba9e841735a3d038fff45f7ea2e_31bf3856ad364e35_6.2.9200.20998_none_bb1bb9198849514e.manifest

File version

Not Applicable

File size

706

Date (UTC)

25-Mar-2014

Time (UTC)

23:01

Platform

Not Applicable

File name

X86_microsoft-windows-audio-mmecore-base_31bf3856ad364e35_6.2.9200.20998_none_b30d9fa03c38f322.manifest

File version

Not Applicable

File size

3,909

Date (UTC)

25-Mar-2014

Time (UTC)

23:01

Platform

Not Applicable

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

File name

Amd64_69c0d3f45cd640578512fd7a093c103d_31bf3856ad364e35_6.2.9200.20998_none_d494a239b18fd358.manifest

File version

Not Applicable

File size

1,060

Date (UTC)

25-Mar-2014

Time (UTC)

22:23

Platform

Not Applicable

File name

Amd64_c2fdcf9299357d7dd4b307d3b783da38_31bf3856ad364e35_6.2.9200.20998_none_34e4455a377a98ba.manifest

File version

Not Applicable

File size

710

Date (UTC)

25-Mar-2014

Time (UTC)

22:23

Platform

Not Applicable

File name

Amd64_f3c2eba9e841735a3d038fff45f7ea2e_31bf3856ad364e35_6.2.9200.20998_none_173a549d40a6c284.manifest

File version

Not Applicable

File size

708

Date (UTC)

25-Mar-2014

Time (UTC)

22:23

Platform

Not Applicable

File name

Amd64_microsoft-windows-audio-mmecore-base_31bf3856ad364e35_6.2.9200.20998_none_0f2c3b23f4966458.manifest

File version

Not Applicable

File size

3,913

Date (UTC)

25-Mar-2014

Time (UTC)

22:23

Platform

Not Applicable

File name

X86_microsoft-windows-audio-mmecore-base_31bf3856ad364e35_6.2.9200.20998_none_b30d9fa03c38f322.manifest

File version

Not Applicable

File size

3,909

Date (UTC)

25-Mar-2014

Time (UTC)

22:23

Platform

Not Applicable

Additional file information for Windows 8.1 and Windows Server 2012 R2

Additional files for all supported x86-based versions of Windows 8.1

File name

X86_370b960fd7318168eda18837f0f8ea73_31bf3856ad364e35_6.3.9600.17080_none_959dbaf8272e2b91.manifest

File version

Not Applicable

File size

706

Date (UTC)

25-Mar-2014

Time (UTC)

22:24

Platform

Not Applicable

File name

X86_microsoft-windows-audio-mmecore-base_31bf3856ad364e35_6.3.9600.17080_none_4a7b631f6d4d6d95.manifest

File version

Not Applicable

File size

3,906

Date (UTC)

25-Mar-2014

Time (UTC)

01:32

Platform

Not Applicable

Additional files for all supported x64-based versions of Windows 8.1 and Windows Server 2012 R2

File name

Amd64_370b960fd7318168eda18837f0f8ea73_31bf3856ad364e35_6.3.9600.17080_none_f1bc567bdf8b9cc7.manifest

File version

Not Applicable

File size

708

Date (UTC)

25-Mar-2014

Time (UTC)

22:28

Platform

Not Applicable

File name

Amd64_a4183bacb7f3eff712d66afe99ecd782_31bf3856ad364e35_6.3.9600.17080_none_b762add23f00574c.manifest

File version

Not Applicable

File size

710

Date (UTC)

25-Mar-2014

Time (UTC)

22:28

Platform

Not Applicable

File name

Amd64_microsoft-windows-audio-mmecore-base_31bf3856ad364e35_6.3.9600.17080_none_a699fea325aadecb.manifest

File version

Not Applicable

File size

3,910

Date (UTC)

25-Mar-2014

Time (UTC)

04:07

Platform

Not Applicable

File name

X86_microsoft-windows-audio-mmecore-base_31bf3856ad364e35_6.3.9600.17080_none_4a7b631f6d4d6d95.manifest

File version

Not Applicable

File size

3,906

Date (UTC)

25-Mar-2014

Time (UTC)

01:32

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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