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Symptoms

When you connect to more than 200 network printers that are hosted on a print server from a client computer that is running Windows 7 or Windows Server 2008 R2, the Print Spooler (Spoolsv.exe) process stops responding.

Cause

This issue occurs because the threads that the system uses to enumerate the printers on the client computer are exhausted.

Resolution

Hotfix information

A supported hotfix is available from Microsoft. 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, visit 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 Windows 7 Service Pack 1 (SP1) or Windows Server 2008 R2 SP1For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:

976932 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global 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 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, 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

    6.1.760
    1.21xxx

    Windows 7 and Windows Server 2008 R2

    SP1

    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 7 and for Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are critical to maintaining the state of the updated component. 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

Win32spl.dll

6.1.7601.21958

1,513,472

05-Apr-2012

04:26

IA-64

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

File name

File version

File size

Date

Time

Platform

Win32spl.dll

6.1.7601.21958

751,104

05-Apr-2012

05:30

x64

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

File name

File version

File size

Date

Time

Platform

Win32spl.dll

6.1.7601.21958

1,513,472

05-Apr-2012

04:26

IA-64

Status

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

More Information

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

Additional file information for Windows 7 and for Windows Server 2008 R2

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

File name

X86_65aed1432564007c39f4a482466bf9ac_31bf3856ad364e35_6.1.7601.21958_none_906218177abef521.manifest

File version

Not applicable

File size

718

Date (UTC)

05-Apr-2012

Time (UTC)

10:28

Platform

Not applicable

File name

X86_db850cd08fd80180417569ddc43947f5_31bf3856ad364e35_7.1.7601.21958_none_67ff556a069c59ba.manifest

File version

Not applicable

File size

718

Date (UTC)

05-Apr-2012

Time (UTC)

10:28

Platform

Not applicable

File name

X86_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.1.7601.21958_none_3bdd0899e866895c.manifest

File version

Not applicable

File size

10,424

Date (UTC)

05-Apr-2012

Time (UTC)

07:42

Platform

Not applicable

File name

X86_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_7.1.7601.21958_none_2d4d84df734d322b.manifest

File version

Not applicable

File size

6,369

Date (UTC)

05-Apr-2012

Time (UTC)

07:48

Platform

Not applicable

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

File name

Amd64_3c575214548eaba9382d9f549af6eb9b_31bf3856ad364e35_6.1.7601.21958_none_03ab6455acd7ffe1.manifest

File version

Not applicable

File size

722

Date (UTC)

05-Apr-2012

Time (UTC)

10:28

Platform

Not applicable

File name

Amd64_3ff3b7cdc5781e76df7c3765cf15a8ef_31bf3856ad364e35_6.1.7601.21958_none_dd16b30d3e712607.manifest

File version

Not applicable

File size

722

Date (UTC)

05-Apr-2012

Time (UTC)

10:28

Platform

Not applicable

File name

Amd64_851cc8ec0ea7c4dfec41cd1bc16f1d02_31bf3856ad364e35_7.1.7601.21958_none_70358a8ed170f804.manifest

File version

Not applicable

File size

1,086

Date (UTC)

05-Apr-2012

Time (UTC)

10:28

Platform

Not applicable

File name

Amd64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.1.7601.21958_none_97fba41da0c3fa92.manifest

File version

Not applicable

File size

10,428

Date (UTC)

05-Apr-2012

Time (UTC)

08:29

Platform

Not applicable

File name

Amd64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_7.1.7601.21958_none_896c20632baaa361.manifest

File version

Not applicable

File size

6,373

Date (UTC)

05-Apr-2012

Time (UTC)

08:36

Platform

Not applicable

File name

Wow64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.1.7601.21958_none_a2504e6fd524bc8d.manifest

File version

Not applicable

File size

10,426

Date (UTC)

05-Apr-2012

Time (UTC)

07:36

Platform

Not applicable

File name

Wow64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_7.1.7601.21958_none_93c0cab5600b655c.manifest

File version

Not applicable

File size

6,371

Date (UTC)

05-Apr-2012

Time (UTC)

07:37

Platform

Not applicable

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

File name

Ia64_0440fe43ea2f443e5c6500a00246d475_31bf3856ad364e35_6.1.7601.21958_none_e42ed54141f32f65.manifest

File version

Not applicable

File size

1,084

Date (UTC)

05-Apr-2012

Time (UTC)

10:28

Platform

Not applicable

File name

Ia64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.1.7601.21958_none_3bdeac8fe8649258.manifest

File version

Not applicable

File size

10,426

Date (UTC)

05-Apr-2012

Time (UTC)

08:29

Platform

Not applicable

File name

Wow64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.1.7601.21958_none_a2504e6fd524bc8d.manifest

File version

Not applicable

File size

10,426

Date (UTC)

05-Apr-2012

Time (UTC)

07:36

Platform

Not applicable

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