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A memory leak occurs when an application performs a snapshot on a computer that is running Windows Server 2003


View products that this article applies to.

Symptoms

A private byte memory leak occurs when an application performs a snapshot on a computer that is running Microsoft Windows Server 2003. Over time, this memory leak may exhaust system resources. Therefore, performance issues may occur. This problem occurs if the application performs the snapshot by using Volume Shadow Copy Service API functions that are provided in Windows Server 2003.

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Cause

This problem occurs because Volume Shadow Copy Service does not correctly manage the 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.

Prerequisites

To apply this hotfix, you must have Windows Server 2003 Service Pack 1 or Windows Server 2003 Service Pack 2 installed. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
889100� How to obtain the latest service pack for Windows Server 2003

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 Server 2003 with Service Pack 2, x86-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirement
Eventcls.dll5.2.3790.408731,23224-May-200710:26x86SP2
Ftdisk.sys5.2.3790.4087137,21623-May-200712:38x86SP2
Partmgr.sys5.2.3790.408725,08823-May-200713:43x86SP2
Swprv.dll5.2.3790.4087275,96823-May-200721:50x86SP2
Volsnap.sys5.2.3790.4087154,11223-May-200712:38x86SP2
Vssadmin.exe5.2.3790.4087134,14423-May-200712:38x86SP2
Vssapi.dll5.2.3790.4087564,22424-May-200710:26x86SP2
Vssui.dll5.2.3790.4087144,38424-May-200710:26x86SP2
Vssvc.exe5.2.3790.4087836,09623-May-200712:38x86SP2
Vss_ps.dll5.2.3790.408719,45624-May-200710:26x86SP2
Windows Server 2003 with Service Pack 2, x64-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Eventcls.dll5.2.3790.408746,08023-May-200722:00x64SP2Not applicable
Ftdisk.sys5.2.3790.4087240,12823-May-200722:00x64SP2Not applicable
Partmgr.sys5.2.3790.408745,05623-May-200722:00x64SP2Not applicable
Volsnap.sys5.2.3790.4087289,79223-May-200722:01x64SP2Not applicable
Vssui.dll5.2.3790.4087233,47223-May-200722:01x64SP2Not applicable
Vss_ps.dll5.2.3790.408725,60023-May-200722:01x64SP2Not applicable
Swprv.dll5.2.3790.4087656,89623-May-200722:00x64SP2Not applicable
Vssadmin.exe5.2.3790.4087245,24823-May-200722:01x64SP2Not applicable
Vssapi.dll5.2.3790.40871,328,64023-May-200722:01x64SP2Not applicable
Vssvc.exe5.2.3790.40872,062,33623-May-200722:01x64SP2Not applicable
Swprv.dll5.2.3790.4087656,89623-May-200722:00x64SP2Not applicable
Vssadmin.exe5.2.3790.4087245,24823-May-200722:01x64SP2Not applicable
Vssapi.dll5.2.3790.40871,328,64023-May-200722:01x64SP2Not applicable
Vssvc.exe5.2.3790.40872,062,33623-May-200722:01x64SP2Not applicable
Swprv.dll5.2.3790.4087656,89623-May-200722:00x64SP2Not applicable
Vssadmin.exe5.2.3790.4087245,24823-May-200722:01x64SP2Not applicable
Vssapi.dll5.2.3790.40871,328,64023-May-200722:01x64SP2Not applicable
Vssvc.exe5.2.3790.40872,062,33623-May-200722:01x64SP2Not applicable
Swprv.dll5.2.3790.4087656,89623-May-200722:00x64SP2Not applicable
Vssadmin.exe5.2.3790.4087245,24823-May-200722:01x64SP2Not applicable
Vssapi.dll5.2.3790.40871,328,64023-May-200722:01x64SP2Not applicable
Vssvc.exe5.2.3790.40872,062,33623-May-200722:01x64SP2Not applicable
Wvssapi.dll5.2.3790.4087564,22423-May-200722:01x86SP2WOW
Wvss_ps.dll5.2.3790.408719,45623-May-200722:01x86SP2WOW
Windows Server 2003 with Service Pack 2, Itanium-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Eventcls.dll5.2.3790.408782,43223-May-200722:00IA-64SP2Not applicable
Ftdisk.sys5.2.3790.4087498,68823-May-200722:00IA-64SP2Not applicable
Partmgr.sys5.2.3790.408783,45623-May-200722:01IA-64SP2Not applicable
Volsnap.sys5.2.3790.4087478,20823-May-200722:01IA-64SP2Not applicable
Vssui.dll5.2.3790.4087407,55223-May-200722:01IA-64SP2Not applicable
Vss_ps.dll5.2.3790.408731,23223-May-200722:01IA-64SP2Not applicable
Swprv.dll5.2.3790.4087832,51223-May-200722:01IA-64SP2Not applicable
Vssadmin.exe5.2.3790.4087313,85623-May-200722:01IA-64SP2Not applicable
Vssapi.dll5.2.3790.40871,649,66423-May-200722:01IA-64SP2Not applicable
Vssvc.exe5.2.3790.40872,586,11223-May-200722:01IA-64SP2Not applicable
Swprv.dll5.2.3790.4087832,51223-May-200722:01IA-64SP2Not applicable
Vssadmin.exe5.2.3790.4087313,85623-May-200722:01IA-64SP2Not applicable
Vssapi.dll5.2.3790.40871,649,66423-May-200722:01IA-64SP2Not applicable
Vssvc.exe5.2.3790.40872,586,11223-May-200722:01IA-64SP2Not applicable
Wvssapi.dll5.2.3790.4087564,22423-May-200722:01x86SP2WOW
Wvss_ps.dll5.2.3790.408719,45623-May-200722:01x86SP2WOW
Windows Server 2003 with Service Pack 1, x86-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirement
Eventcls.dll5.2.3790.294231,23224-May-200710:54x86SP1
Ftdisk.sys5.2.3790.2942137,21623-May-200715:54x86SP1
Partmgr.sys5.2.3790.294225,08823-May-200716:28x86SP1
Swprv.dll5.2.3790.2942275,96824-May-200710:54x86SP1
Volsnap.sys5.2.3790.2942154,11223-May-200715:54x86SP1
Vssadmin.exe5.2.3790.2942134,14423-May-200715:54x86SP1
Vssapi.dll5.2.3790.2942564,22424-May-200710:54x86SP1
Vssui.dll5.2.3790.2942144,38424-May-200710:54x86SP1
Vssvc.exe5.2.3790.2942836,09623-May-200715:54x86SP1
Vss_ps.dll5.2.3790.294219,45624-May-200710:54x86SP1
Windows Server 2003, x64-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Eventcls.dll5.2.3790.294246,08023-May-200720:15x64SP1Not applicable
Ftdisk.sys5.2.3790.2942240,12823-May-200720:15x64SP1Not applicable
Partmgr.sys5.2.3790.294245,05623-May-200720:15x64SP1Not applicable
Volsnap.sys5.2.3790.2942289,79223-May-200720:15x64SP1Not applicable
Vssui.dll5.2.3790.2942233,47223-May-200720:15x64SP1Not applicable
Vss_ps.dll5.2.3790.294225,60023-May-200720:15x64SP1Not applicable
Swprv.dll5.2.3790.2942656,89623-May-200720:15x64SP1Not applicable
Vssadmin.exe5.2.3790.2942245,24823-May-200720:15x64SP1Not applicable
Vssapi.dll5.2.3790.29421,328,64023-May-200720:15x64SP1Not applicable
Vssvc.exe5.2.3790.29422,062,33623-May-200720:15x64SP1Not applicable
Swprv.dll5.2.3790.2942656,89623-May-200720:15x64SP1Not applicable
Vssadmin.exe5.2.3790.2942245,24823-May-200720:15x64SP1Not applicable
Vssapi.dll5.2.3790.29421,328,64023-May-200720:15x64SP1Not applicable
Vssvc.exe5.2.3790.29422,062,33623-May-200720:15x64SP1Not applicable
Swprv.dll5.2.3790.2942656,89623-May-200720:15x64SP1Not applicable
Vssadmin.exe5.2.3790.2942245,24823-May-200720:15x64SP1Not applicable
Vssapi.dll5.2.3790.29421,328,64023-May-200720:15x64SP1Not applicable
Vssvc.exe5.2.3790.29422,062,33623-May-200720:15x64SP1Not applicable
Swprv.dll5.2.3790.2942656,89623-May-200720:15x64SP1Not applicable
Vssadmin.exe5.2.3790.2942245,24823-May-200720:15x64SP1Not applicable
Vssapi.dll5.2.3790.29421,328,64023-May-200720:15x64SP1Not applicable
Vssvc.exe5.2.3790.29422,062,33623-May-200720:15x64SP1Not applicable
Wvssapi.dll5.2.3790.2942564,22423-May-200720:15x86SP1WOW
Wvss_ps.dll5.2.3790.294219,45623-May-200720:15x86SP1WOW
Windows Server 2003 with Service Pack 1, Itanium-based versions
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Eventcls.dll5.2.3790.294282,43223-May-200720:15IA-64SP1Not applicable
Ftdisk.sys5.2.3790.2942498,68823-May-200720:15IA-64SP1Not applicable
Partmgr.sys5.2.3790.294283,45623-May-200720:15IA-64SP1Not applicable
Volsnap.sys5.2.3790.2942478,20823-May-200720:15IA-64SP1Not applicable
Vssui.dll5.2.3790.2942407,55223-May-200720:15IA-64SP1Not applicable
Vss_ps.dll5.2.3790.294231,23223-May-200720:15IA-64SP1Not applicable
Swprv.dll5.2.3790.2942832,51223-May-200720:15IA-64SP1Not applicable
Vssadmin.exe5.2.3790.2942313,85623-May-200720:15IA-64SP1Not applicable
Vssapi.dll5.2.3790.29421,649,66423-May-200720:15IA-64SP1Not applicable
Vssvc.exe5.2.3790.29422,586,11223-May-200720:16IA-64SP1Not applicable
Swprv.dll5.2.3790.2942832,51223-May-200720:15IA-64SP1Not applicable
Vssadmin.exe5.2.3790.2942313,85623-May-200720:15IA-64SP1Not applicable
Vssapi.dll5.2.3790.29421,649,66423-May-200720:15IA-64SP1Not applicable
Vssvc.exe5.2.3790.29422,586,11223-May-200720:15IA-64SP1Not applicable
Wvssapi.dll5.2.3790.2942564,22423-May-200720:16x86SP1WOW
Wvss_ps.dll5.2.3790.294219,45623-May-200720:16x86SP1WOW

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Workaround

To work around this problem, restart Volume Shadow Copy Service.

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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

Volume Shadow Copy Service lets users perform a data snapshot. To do this, the service uses hardware providers and software providers to implement its functionality. The service coordinates requesters, providers and writers. For more information, visit the following Microsoft TechNet Web site:For more information about the terms that are used to describe software updates, 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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Keywords: kbautohotfix, kbexpertiseinter, kbwinserv2003postsp2fix, kbbug, kbfix, kbqfe, KB933653

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Article Info
Article ID : 933653
Revision : 2
Created on : 10/8/2011
Published on : 10/8/2011
Exists online : False
Views : 270