Article ID: 953988 - Last Review: July 1, 2008 - Revision: 1.0 An application that uses the IEnumVARIANT interface triggers a memory leak, and this causes system performance to decrease on a Windows Server 2003-based computer
On This PageSYMPTOMSConsider the following scenario:
When you run Performance Monitor (Perfmon.exe) in this scenario, you find that the Private Bytes counter for the application that you created steadily increases over time. CAUSEThis issue occurs because of a memory leak in the
Adsmsext.dll file. This problem occurs in the IEnumVARIANT interface that is returned by the get__NewEnum method of the IADsMembers interface. The IADs interface that is retrieved from the Next method of the IEnumVARIANT interface has a reference count leak. One reference count leak occurs on each item. Therefore, an IADs interface is leaked for every group member that is enumerated in a group. On large groups or in repeated enumerations, this leak is very significant. RESOLUTIONHotfix informationA 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
(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.PrerequisitesTo apply this hotfix, you must have Windows Server 2003 Service Pack 1 (SP1) or Windows Server 2003 Service Pack 2 (SP2) installed.Restart requirementYou do not have to restart the computer after you apply this hotfix.Hotfix replacement informationThis hotfix does not replace any other previously released hotfixes.Registry informationTo use this hotfix, you do not have to make any changes to the registry.File informationThe 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 SP1, x86-based versionsCollapse this table
Windows Server 2003 SP2, x86-based versionsCollapse this table
Windows Server 2003 SP1, x64-based versionsCollapse this table
Windows Server 2003 SP2, x64-based versionsCollapse this table
Windows Server 2003 SP1, Itanium-based versionsCollapse this table
Windows Server 2003 SP2, Itanium-based versionsCollapse this table
STATUSMicrosoft
has confirmed that this is a problem in the Microsoft products that are listed
in the "Applies to" section. MORE INFORMATIONFor more information about the IADsMembers interface, visit
the following Microsoft Web site: http://msdn.microsoft.com/en-us/library/aa706041(VS.85).aspx
(http://msdn.microsoft.com/en-us/library/aa706041(VS.85).aspx)
For more information about the IEnumVARIANT interface, visit the
following Microsoft Web site:http://msdn.microsoft.com/en-us/library/ms221053(VS.85).aspx
(http://msdn.microsoft.com/en-us/library/ms221053(VS.85).aspx)
For more information about the IADs interface, visit the following
Microsoft Web site:http://msdn.microsoft.com/en-us/library/aa705950(VS.85).aspx
(http://msdn.microsoft.com/en-us/library/aa705950(VS.85).aspx)
For more information about how to use Performance
Monitor, visit the following Microsoft Web site:http://msdn.microsoft.com/en-us/library/bb159123.aspx
(http://msdn.microsoft.com/en-us/library/bb159123.aspx)
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
824684
(http://support.microsoft.com/kb/824684/
)
Description of the standard
terminology that is used to describe Microsoft software updates
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