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Handle leaks and memory leaks occur on the Printer Spooler service when a Windows Vista SP1-based computer or a Windows Server 2008-based computer installs and uninstalls network printers

SYMPTOMS
On a Windows Vista Service Pack 1-based computer or a Windows Server 2008-based computer, handle leaks and memory leaks occur on the Printer Spooler service if the computer installs and uninstalls network printers. You may find that the handle usage and memory usage of the spoolsv.exe process keeps increasing.

Note You can use Windows Task Manager or the Performance Monitor utility to verify this issue. The "More Information" section provides steps to verify the issue by using Windows Task Manager.

For example, if you have a Windows Server 2008-based terminal server, the handle leaks and the memory leaks occur when clients that have redirected printers log on and log off the terminal server. When the client logon and logoff events occur many times, and the Printer Spooler service has not restarted, the computer may start to respond slowly.
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 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

To apply this hotfix, you must have Windows Server 2008 or Windows Vista SP1 installed on the computer.

Restart requirement

You may have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

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 .manifest files and the .mum files that are installed in each environment are listed separately in the "Additional file information for Windows Server 2008 and for Windows Vista" section. These files and their associated .cat (security catalog) files are critical to maintaining the state of the updated component. The .cat files are signed with a Microsoft digital signature. The attributes of these security files are not listed.
For all supported x86-based versions of Windows Server 2008 and of Windows Vista
File nameFile versionFile sizeDateTimePlatform
Localspl.dll6.0.6001.22286634,88014-Oct-200803:33x86
Printcom.dll6.0.6001.2228637,88814-Oct-200803:33x86
Win32spl.dll6.0.6001.22286443,39214-Oct-200803:33x86
For all supported x64-based versions of Windows Server 2008 and of Windows Vista
File nameFile versionFile sizeDateTimePlatform
Localspl.dll6.0.6001.22286788,99214-Oct-200803:55x64
Printcom.dll6.0.6001.2228644,54414-Oct-200803:55x64
Win32spl.dll6.0.6001.22286660,48014-Oct-200803:56x64
Printcom.dll6.0.6001.2228637,88814-Oct-200803:33x86
Win32spl.dll6.0.6001.22286443,39214-Oct-200803:33x86
For all supported Itanium-based versions of Windows Server 2008
File nameFile versionFile sizeDateTimePlatform
Localspl.dll6.0.6001.222861,618,43214-Oct-200804:53IA-64
Printcom.dll6.0.6001.2228698,81614-Oct-200804:57IA-64
Win32spl.dll6.0.6001.222861,248,25614-Oct-200804:59IA-64
Printcom.dll6.0.6001.2228637,88814-Oct-200803:33x86
Win32spl.dll6.0.6001.22286443,39214-Oct-200803:33x86
STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
MORE INFORMATION
To check the memory usage and handle usage for the spoolsv.exe process by using task manager, follow these steps:
  1. Right-click the taskbar, and then click Task Manager.
  2. Click the Processes tab.
  3. Click View, and then click Columns.
  4. Click to select the Handles item, and then click OK.
  5. Click the Show processes from all users check box.
  6. In the Handles column and the Memory column, you can find the data for the spoolsv.exe process.
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 for Windows Server 2008

Additional files for all supported x86-based versions of Windows Server 2008 and of Windows Vista
File namePackage_for_kb955560_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,367
Date (UTC)14-Oct-2008
Time (UTC)15:46
PlatformNot Applicable
File namePackage_for_kb955560_client~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,431
Date (UTC)14-Oct-2008
Time (UTC)15:46
PlatformNot Applicable
File namePackage_for_kb955560_sc_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,408
Date (UTC)14-Oct-2008
Time (UTC)15:46
PlatformNot Applicable
File namePackage_for_kb955560_sc~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,423
Date (UTC)14-Oct-2008
Time (UTC)15:46
PlatformNot Applicable
File namePackage_for_kb955560_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,425
Date (UTC)14-Oct-2008
Time (UTC)15:46
PlatformNot Applicable
File namePackage_for_kb955560_server~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,431
Date (UTC)14-Oct-2008
Time (UTC)15:46
PlatformNot Applicable
File nameX86_microsoft-windows-p..ooler-core-localspl_31bf3856ad364e35_6.0.6001.22286_none_30547f08ac072d5e.manifest
File versionNot Applicable
File size14,442
Date (UTC)14-Oct-2008
Time (UTC)04:12
PlatformNot Applicable
File nameX86_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6001.22286_none_39ac5bc68a431875.manifest
File versionNot Applicable
File size48,324
Date (UTC)14-Oct-2008
Time (UTC)04:15
PlatformNot Applicable
Additional files for all supported x64-based versions of Windows Server 2008 and of Windows Vista
File nameAmd64_microsoft-windows-p..ooler-core-localspl_31bf3856ad364e35_6.0.6001.22286_none_8c731a8c64649e94.manifest
File versionNot Applicable
File size14,512
Date (UTC)14-Oct-2008
Time (UTC)04:28
PlatformNot Applicable
File nameAmd64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6001.22286_none_95caf74a42a089ab.manifest
File versionNot Applicable
File size48,362
Date (UTC)14-Oct-2008
Time (UTC)04:29
PlatformNot Applicable
File namePackage_for_kb955560_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,375
Date (UTC)14-Oct-2008
Time (UTC)15:46
PlatformNot Applicable
File namePackage_for_kb955560_client~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,439
Date (UTC)14-Oct-2008
Time (UTC)15:46
PlatformNot Applicable
File namePackage_for_kb955560_sc_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,416
Date (UTC)14-Oct-2008
Time (UTC)15:46
PlatformNot Applicable
File namePackage_for_kb955560_sc~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,431
Date (UTC)14-Oct-2008
Time (UTC)15:46
PlatformNot Applicable
File namePackage_for_kb955560_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,433
Date (UTC)14-Oct-2008
Time (UTC)15:46
PlatformNot Applicable
File namePackage_for_kb955560_server~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,439
Date (UTC)14-Oct-2008
Time (UTC)15:46
PlatformNot Applicable
File nameWow64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6001.22286_none_a01fa19c77014ba6.manifest
File versionNot Applicable
File size49,128
Date (UTC)14-Oct-2008
Time (UTC)04:08
PlatformNot Applicable
Additional files for all supported Itanium-based versions of Windows Server 2008
File nameIa64_microsoft-windows-p..ooler-core-localspl_31bf3856ad364e35_6.0.6001.22286_none_305622feac05365a.manifest
File versionNot Applicable
File size14,458
Date (UTC)14-Oct-2008
Time (UTC)06:27
PlatformNot Applicable
File nameIa64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6001.22286_none_39adffbc8a412171.manifest
File versionNot Applicable
File size48,343
Date (UTC)14-Oct-2008
Time (UTC)06:27
PlatformNot Applicable
File namePackage_for_kb955560_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,429
Date (UTC)14-Oct-2008
Time (UTC)15:46
PlatformNot Applicable
File namePackage_for_kb955560_server~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,434
Date (UTC)14-Oct-2008
Time (UTC)15:46
PlatformNot Applicable
File nameWow64_microsoft-windows-p..ooler-networkclient_31bf3856ad364e35_6.0.6001.22286_none_a01fa19c77014ba6.manifest
File versionNot Applicable
File size49,128
Date (UTC)14-Oct-2008
Time (UTC)04:08
PlatformNot Applicable
Properties

Article ID: 955560 - Last Review: 10/08/2011 05:24:00 - Revision: 3.0

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

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