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The Print Spooler service consumes a large amount of memory because of unsuitable RPC caching in Windows Server 2008 and in Windows Vista


View products that this article applies to.

Symptoms

Consider the following scenario:
  • You have a Windows Server 2008-based print server.
  • This print server has many Windows Vista-based printer clients.
In this scenario, the memory usage of the Print Spooler service increases over time. For example, assume that you have several thousand printer clients that connect to the print server. Eventually, the print server becomes unresponsive, and you must restart the server to recover from this problem.

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Cause

This problem occurs because of remote procedure call (RPC) caching that is intended to increase performance. However, RPC caching also uses a large amount of memory.

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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 this specific problem. 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 Web site: Note 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.

Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the �Hotfix Request� page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.

Prerequisites

You must have Windows Vista Service Pack 1 (SP1) installed to apply this hotfix.

Note Windows Vista SP1 functionality is integrated into Windows Server 2008.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
Windows Vista and Windows Server 2008 file information notes
  • The MANIFEST (.manifest) files and the MUM (.mum) files that are installed for each environment are listed separately. 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 (attributes not listed) are signed by a Microsoft digital signature.

For all supported x86-based versions of Windows Server 2008 and of Windows Vista
File nameFile versionFile sizeDateTimePlatform
Rpcrt4.dll6.0.6001.22221784,89612-Jul-200801:11x86

For all supported x64-based versions of Windows Server 2008 and of Windows Vista
File nameFile versionFile sizeDateTimePlatform
Rpcrt4.dll6.0.6001.222211,320,44812-Jul-200801:47x64
Rpcrt4.dll6.0.6001.22221677,37612-Jul-200801:11x86

For all supported IA-64-based versions of Windows Server 2008
File nameFile versionFile sizeDateTimePlatform
Rpcrt4.dll6.0.6001.222213,307,52012-Jul-200801:28IA-64
Rpcrt4.dll6.0.6001.22221677,37612-Jul-200801:11x86

Additional file information for Windows Server 2008 and for Windows Vista

Additional files for all supported x86-based versions of Windows Server 2008 and of Windows Vista
File namePackage_1_for_kb952178~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,777
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_2_for_kb952178~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,944
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_3_for_kb952178~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,782
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_4_for_kb952178~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,782
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,367
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_client~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,431
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,421
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_sc~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,423
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,425
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_server~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,431
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_winpesrv_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,422
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_winpesrv~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,429
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File nameX86_29403618a3e6ed61585ff0a4567b5381_31bf3856ad364e35_6.0.6001.22221_none_6d091c152ec6ab3f.manifest
File versionNot Applicable
File size697
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File nameX86_microsoft-windows-rpc-local_31bf3856ad364e35_6.0.6001.22221_none_b46f9e3a5e413d89.manifest
File versionNot Applicable
File size28,515
Date (UTC)12-Jul-2008
Time (UTC)01:50
PlatformNot Applicable

Additional files for all supported x64-based versions of Windows Server 2008 and of Windows Vista
File nameAmd64_69984b14597bec42763d474a8f753e34_31bf3856ad364e35_6.0.6001.22221_none_cee6bd406390968e.manifest
File versionNot Applicable
File size701
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File nameAmd64_af25538cd6329e7321003eeaaa5839ab_31bf3856ad364e35_6.0.6001.22221_none_e16d5843236cf66e.manifest
File versionNot Applicable
File size1,044
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File nameAmd64_microsoft-windows-rpc-local_31bf3856ad364e35_6.0.6001.22221_none_108e39be169eaebf.manifest
File versionNot Applicable
File size28,555
Date (UTC)12-Jul-2008
Time (UTC)02:31
PlatformNot Applicable
File namePackage_1_for_kb952178~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,787
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_2_for_kb952178~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,173
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_3_for_kb952178~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,009
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_4_for_kb952178~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,009
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,375
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_client~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,439
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,429
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,431
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,433
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_server~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,439
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_winpesrv_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,430
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_winpesrv~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,437
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File nameWow64_microsoft-windows-rpc-local_31bf3856ad364e35_6.0.6001.22221_none_1ae2e4104aff70ba.manifest
File versionNot Applicable
File size26,141
Date (UTC)12-Jul-2008
Time (UTC)01:36
PlatformNot Applicable

Additional files for all supported IA-64-based versions of Windows Server 2008
File nameIa64_09315daf931372ce77d6e905d645bd3e_31bf3856ad364e35_6.0.6001.22221_none_c1022bace7ce90d7.manifest
File versionNot Applicable
File size699
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File nameIa64_56aed23dec58fc68deac9325147c6c4c_31bf3856ad364e35_6.0.6001.22221_none_6e63a4c5ff524138.manifest
File versionNot Applicable
File size1,042
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File nameIa64_microsoft-windows-rpc-local_31bf3856ad364e35_6.0.6001.22221_none_b47142305e3f4685.manifest
File versionNot Applicable
File size28,533
Date (UTC)12-Jul-2008
Time (UTC)02:01
PlatformNot Applicable
File namePackage_1_for_kb952178~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,782
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_2_for_kb952178~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size2,004
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_3_for_kb952178~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size2,004
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_sc_0~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,425
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_sc~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,426
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,429
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_server~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,434
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_winpesrv_0~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,426
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File namePackage_for_kb952178_winpesrv~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,433
Date (UTC)14-Jul-2008
Time (UTC)21:47
PlatformNot Applicable
File nameWow64_microsoft-windows-rpc-local_31bf3856ad364e35_6.0.6001.22221_none_1ae2e4104aff70ba.manifest
File versionNot Applicable
File size26,141
Date (UTC)12-Jul-2008
Time (UTC)01:36
PlatformNot Applicable

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Status

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

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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

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References

For more information, click the following article number to view the article in the Microsoft Knowledge Base:
951638 Performance issues are caused by a memory leak on a Windows Server 2008-based print server that has many Windows Vista-based printer clients

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Keywords: kbautohotfix, kbexpertiseinter, kbbug, kbfix, kbqfe, KB952178

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Article Info
Article ID : 952178
Revision : 2
Created on : 10/8/2011
Published on : 10/8/2011
Exists online : False
Views : 526