A print server's performance gradually decreases after you add a shared printer to a computer that is running Windows Vista or Windows Server 2008

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Article ID: 950087 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario:
  • On a computer that is running Windows Vista or Windows Server 2008, you add a shared printer.
  • This shared printer is located on a print server that is running an earlier version of Windows, such as Windows Server 2003.
  • The shared printer's status is "Driver Update Needed."

    Note This status is displayed in the Status field in the Printers item in Control Panel.
In this scenario, the print server's performance gradually decreases. Eventually, the print server constantly runs at 100-percent CPU utilization.

CAUSE

When a Windows Vista client connects to a print server that is running an earlier version of Windows and that has some updated printer files installed, the printer is put into the "Driver Update Needed" status. Therefore, the client computer calls the OpenPrinter and GetPrinter functions to compare and download the new driver. However, if the client computer cannot open a back channel to the print server because of a firewall restriction, the client computer cannot receive a response. In this case, the client computer calls the two functions repeatedly. If many clients are in this condition, the print server is quickly overloaded.

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:
http://support.microsoft.com/contactus/?ws=support
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

To apply this hotfix, the computer must run one of the following:
  • Windows Vista SP1
  • Windows Server 2008
  • Windows Vista

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

Registry information

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

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 files that apply to a specific product, milestone (RTM, SPn) can be identified by examining the file version numbers as shown in the following table:
    Collapse this tableExpand this table
    VersionProductMilestoneService branch
    6.0.600 0 . 20 xxx Windows RTM LDR
    6.0.600 1 . 22 xxx Windows Vista SP1 and Windows Server 2008 SP1 SP1 LDR
  • Service Pack 1 is integrated into Windows Server 2008. Therefore, RTM milestone files apply only to Windows Vista. RTM milestone files have a 6.0.0000.xxxxxx version number.
  • The MANIFEST files (.manifest) and MUM files (.mum) 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 with a Microsoft digital signature.
For all supported x86-based versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformService branch
Localspl.dll6.0.6000.20796694,78420-Mar-200805:13x86X86_MICROSOFT-WINDOWS-P..OOLER-CORE-LOCALSP
Localspl.dll6.0.6001.22140634,36820-Mar-200805:20x86X86_MICROSOFT-WINDOWS-P..OOLER-CORE-LOCALSP
Printcom.dll6.0.6000.2079637,37620-Mar-200805:15x86Not Applicable
Win32spl.dll6.0.6000.20796442,36820-Mar-200805:16x86Not Applicable
Printcom.dll6.0.6001.2214037,88820-Mar-200805:20x86Not Applicable
Win32spl.dll6.0.6001.22140441,34420-Mar-200805:21x86Not Applicable
For all supported x64-based versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformService branch
Localspl.dll6.0.6000.20796834,56020-Mar-200805:32x64AMD64_MICROSOFT-WINDOWS-P..OOLER-CORE-LOCALSP
Localspl.dll6.0.6001.22140788,48020-Mar-200805:46x64AMD64_MICROSOFT-WINDOWS-P..OOLER-CORE-LOCALSP
Printcom.dll6.0.6000.2079644,54420-Mar-200805:34x64Not Applicable
Win32spl.dll6.0.6000.20796664,57620-Mar-200805:35x64Not Applicable
Printcom.dll6.0.6001.2214044,54420-Mar-200805:46x64Not Applicable
Win32spl.dll6.0.6001.22140656,38420-Mar-200805:47x64Not Applicable
Printcom.dll6.0.6000.2079637,37620-Mar-200805:15x86Not Applicable
Win32spl.dll6.0.6000.20796442,36820-Mar-200805:16x86Not Applicable
Printcom.dll6.0.6001.2214037,88820-Mar-200805:20x86Not Applicable
Win32spl.dll6.0.6001.22140441,34420-Mar-200805:21x86Not Applicable
For all supported Itanium-based versions of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Localspl.dll6.0.6001.221401,617,40820-Mar-200805:32IA-64
Printcom.dll6.0.6001.2214098,81620-Mar-200805:35IA-64
Win32spl.dll6.0.6001.221401,241,60020-Mar-200805:36IA-64
Printcom.dll6.0.6001.2214037,88820-Mar-200805:20x86
Win32spl.dll6.0.6001.22140441,34420-Mar-200805:21x86

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
Collapse this tableExpand this table
File namePackage_1_for_kb950087~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size2,655
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_2_for_kb950087~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size2,493
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_3_for_kb950087~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size2,480
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_4_for_kb950087~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size2,495
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_for_kb950087_client_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,426
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_for_kb950087_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,367
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_for_kb950087_client~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,713
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_for_kb950087_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,408
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_for_kb950087_sc~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,423
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_for_kb950087_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,425
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_for_kb950087_server~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,431
Date (UTC)20-Mar-2008
Time (UTC)21:43
File nameX86_0ef54c2b8263aa23947a7e158bbaf4f1_31bf3856ad364e35_6.0.6000.20796_none_b5d5e433d87acfb1.manifest
File versionNot Applicable
File size718
Date (UTC)20-Mar-2008
Time (UTC)21:43
File nameX86_b9d7db367319806e8116bae30b995567_31bf3856ad364e35_6.0.6001.22140_none_0ecfc3b46752c0d9.manifest
File versionNot Applicable
File size718
Date (UTC)20-Mar-2008
Time (UTC)21:43
File nameX86_d4d066e3aeef6a800c2b16a55bc2dea4_31bf3856ad364e35_6.0.6001.22140_none_6e315f050c3792f7.manifest
File versionNot Applicable
File size718
Date (UTC)20-Mar-2008
Time (UTC)21:43
File nameX86_fe2ba345d9552843ed4b80e2147f6ccc_31bf3856ad364e35_6.0.6000.20796_none_9e5b5261ba5af6d6.manifest
File versionNot Applicable
File size718
Date (UTC)20-Mar-2008
Time (UTC)21:43
File nameX86_microsoft-windows-p..ooler-core-localspl_31bf3856ad364e35_6.0.6000.20796_none_2e636e90aee8bb37.manifest
File versionNot Applicable
File size12,648
Date (UTC)20-Mar-2008
Time (UTC)05:37
File nameX86_microsoft-windows-p..ooler-core-localspl_31bf3856ad364e35_6.0.6001.22140_none_3079bb16abec2869.manifest
File versionNot Applicable
File size14,442
Date (UTC)20-Mar-2008
Time (UTC)06:05
File nameX86_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6000.20796_none_37bb4b4e8d24a64e.manifest
File versionNot Applicable
File size48,324
Date (UTC)20-Mar-2008
Time (UTC)05:35
File nameX86_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6001.22140_none_39d197d48a281380.manifest
File versionNot Applicable
File size48,324
Date (UTC)20-Mar-2008
Time (UTC)06:06
Additional files for all supported x64-based versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File nameAmd64_05590f413066c4beb98847ef1f5b0bd2_31bf3856ad364e35_6.0.6000.20796_none_3b09c9b69d4c73f9.manifest
File versionNot Applicable
File size1,084
Date (UTC)20-Mar-2008
Time (UTC)21:43
File nameAmd64_3de59fcc5ca276e45288ed99f34514e1_31bf3856ad364e35_6.0.6001.22140_none_c858a65040a4b5d5.manifest
File versionNot Applicable
File size1,084
Date (UTC)20-Mar-2008
Time (UTC)21:43
File nameAmd64_a408b035e62f142eb0bdc32de4445031_31bf3856ad364e35_6.0.6000.20796_none_f7cd28834db891bf.manifest
File versionNot Applicable
File size1,086
Date (UTC)20-Mar-2008
Time (UTC)21:43
File nameAmd64_acf010779c137cec9bcf260116aa987e_31bf3856ad364e35_6.0.6001.22140_none_ee55edc3022a63b9.manifest
File versionNot Applicable
File size1,086
Date (UTC)20-Mar-2008
Time (UTC)21:43
File nameAmd64_microsoft-windows-p..ooler-core-localspl_31bf3856ad364e35_6.0.6000.20796_none_8a820a1467462c6d.manifest
File versionNot Applicable
File size12,716
Date (UTC)20-Mar-2008
Time (UTC)06:14
File nameAmd64_microsoft-windows-p..ooler-core-localspl_31bf3856ad364e35_6.0.6001.22140_none_8c98569a6449999f.manifest
File versionNot Applicable
File size14,512
Date (UTC)20-Mar-2008
Time (UTC)06:56
File nameAmd64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6000.20796_none_93d9e6d245821784.manifest
File versionNot Applicable
File size48,362
Date (UTC)20-Mar-2008
Time (UTC)06:10
File nameAmd64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6001.22140_none_95f03358428584b6.manifest
File versionNot Applicable
File size48,362
Date (UTC)20-Mar-2008
Time (UTC)06:56
File namePackage_1_for_kb950087~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size3,145
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_2_for_kb950087~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,981
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_3_for_kb950087~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,968
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_4_for_kb950087~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,983
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_for_kb950087_client_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,434
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_for_kb950087_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,375
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_for_kb950087_client~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,723
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_for_kb950087_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,416
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_for_kb950087_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,431
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_for_kb950087_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,433
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_for_kb950087_server~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,439
Date (UTC)20-Mar-2008
Time (UTC)21:43
File nameWow64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6000.20796_none_9e2e912479e2d97f.manifest
File versionNot Applicable
File size49,128
Date (UTC)20-Mar-2008
Time (UTC)05:29
File nameWow64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6001.22140_none_a044ddaa76e646b1.manifest
File versionNot Applicable
File size49,128
Date (UTC)20-Mar-2008
Time (UTC)06:00
Additional files for all supported Itanium-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameIa64_01d016a1a444a241bb8e977a2e24d3d7_31bf3856ad364e35_6.0.6001.22140_none_888074a4f0c22810.manifest
File versionNot Applicable
File size1,084
Date (UTC)20-Mar-2008
Time (UTC)21:43
File nameIa64_88c7b139e63ef44cf3e05666a4cdfa9f_31bf3856ad364e35_6.0.6001.22140_none_eb8970486eb55f85.manifest
File versionNot Applicable
File size1,082
Date (UTC)20-Mar-2008
Time (UTC)21:43
File nameIa64_microsoft-windows-p..ooler-core-localspl_31bf3856ad364e35_6.0.6001.22140_none_307b5f0cabea3165.manifest
File versionNot Applicable
File size14,458
Date (UTC)20-Mar-2008
Time (UTC)06:18
File nameIa64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6001.22140_none_39d33bca8a261c7c.manifest
File versionNot Applicable
File size48,343
Date (UTC)20-Mar-2008
Time (UTC)06:19
File namePackage_1_for_kb950087~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size2,974
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_for_kb950087_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,429
Date (UTC)20-Mar-2008
Time (UTC)21:43
File namePackage_for_kb950087_server~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,434
Date (UTC)20-Mar-2008
Time (UTC)21:43
File nameWow64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6001.22140_none_a044ddaa76e646b1.manifest
File versionNot Applicable
File size49,128
Date (UTC)20-Mar-2008
Time (UTC)06:00

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, 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

Properties

Article ID: 950087 - Last Review: October 8, 2011 - Revision: 2.0
APPLIES TO
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 for Itanium-Based Systems
  • Windows Server 2008 Standard without Hyper-V
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Standard
  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Ultimate 64-bit Edition
  • Windows Vista Business
  • Windows Vista Business 64-bit Edition
  • Windows Vista Enterprise
  • Windows Vista Home Basic
  • Windows Vista Home Premium
  • Windows Vista Ultimate
Keywords: 
kbautohotfix kbexpertisebeginner kbfix kbqfe KB950087

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