A memory leak occurs when you run a web service that is implemented by using the Windows Web Services API in Windows 7 or in Windows Server 2008 R2

Applies to: Windows 7 EnterpriseWindows 7 Home BasicWindows 7 Home Premium More

Symptoms


Assume that you run a web service that is implemented by using the Windows Web Services API (Webservices.dll) on a computer that is running Windows 7 or Windows Server 2008 R2. In this situation, the memory usage of the application continually increases.

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.

Prerequisites

To apply this hotfix, you must be running one of the following operating systems:
  • Windows 7
  • Windows 7 Service Pack 1 (SP1)
  • Windows Server 2008 R2
  • Windows Server 2008 R2 Service Pack 1 (SP1)

Registry information

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

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

The global version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows 7 and Windows Server 2008 R2 file information notes
Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
  • The files that apply to a specific product, SR_Level (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table.
    VersionProductSR_LevelService branch
    6.1.760 0.
    16xxx
    Windows 7 and Windows Server 2008 R2RTMGDR
    6.1.760 0.
    20xxx
    Windows 7 and Windows Server 2008 R2RTMLDR
    6.1.760 1.
    17xxx
    Windows 7 and Windows Server 2008 R2SP1GDR
    6.1.760 1.
    21xxx
    Windows 7 and Windows Server 2008 R2SP1LDR
  • The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2 and for Windows 7" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.
For all supported x86-based versions of Windows 7
File nameFile versionFile sizeDateTimePlatform
Webservices.dll6.1.7600.16739782,33614-Jan-201105:39x86
Webservices.dll6.1.7600.20880782,33614-Jan-201105:15x86
Webservices.dll6.1.7601.17542782,33614-Jan-201105:48x86
Webservices.dll6.1.7601.21641782,33614-Jan-201105:38x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Webservices.dll6.1.7600.167391,159,68014-Jan-201106:21x64
Webservices.dll6.1.7600.208801,159,68014-Jan-201106:14x64
Webservices.dll6.1.7601.175421,159,68014-Jan-201111:13x64
Webservices.dll6.1.7601.216411,159,68014-Jan-201106:24x64
Webservices.dll6.1.7600.16739782,33614-Jan-201105:39x86
Webservices.dll6.1.7600.20880782,33614-Jan-201105:15x86
Webservices.dll6.1.7601.17542782,33614-Jan-201105:48x86
Webservices.dll6.1.7601.21641782,33614-Jan-201105:38x86
For all supported IA-64-based versions of Windows Server 2008 R2
File nameFile versionFile sizeDateTimePlatform
Webservices.dll6.1.7600.167392,344,96014-Jan-201105:18IA-64
Webservices.dll6.1.7600.208802,344,96014-Jan-201105:13IA-64
Webservices.dll6.1.7601.175422,344,96014-Jan-201105:12IA-64
Webservices.dll6.1.7601.216412,344,96014-Jan-201105:12IA-64
Webservices.dll6.1.7600.16739782,33614-Jan-201105:39x86
Webservices.dll6.1.7600.20880782,33614-Jan-201105:15x86
Webservices.dll6.1.7601.17542782,33614-Jan-201105:48x86
Webservices.dll6.1.7601.21641782,33614-Jan-201105:38x86

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 about the Windows Web Services API, visit the following Microsoft Developer Network (MSDN) website: For more information about how to use the Windows Web Services API to implement Web Services, visit the following Microsoft website: 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

Additional file information for Windows 7 and for Windows Server 2008 R2

Additional files for all supported x86-based versions of Windows 7
File nameUpdate.mum
File versionNot applicable
File size2,773
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameX86_497265f3c8e288dac952586f78c3c440_31bf3856ad364e35_6.1.7600.16739_none_ff0ebb3faf81b44a.manifest
File versionNot applicable
File size699
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameX86_9072ebc8871e2e2b8dd66b9bc2f8863c_31bf3856ad364e35_6.1.7601.17542_none_01f60bab4b76a16f.manifest
File versionNot applicable
File size699
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameX86_d79f93b0d4a9097bdafc497df384e8ce_31bf3856ad364e35_6.1.7600.20880_none_266a48f237f22bbf.manifest
File versionNot applicable
File size699
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameX86_e432615ea15feb88ebf280cd03910058_31bf3856ad364e35_6.1.7601.21641_none_7179a7398ca8446f.manifest
File versionNot applicable
File size699
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.16739_none_0e8cc6b88fd9a386.manifest
File versionNot applicable
File size2,724
Date (UTC)14-Jan-2011
Time (UTC)06:19
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.20880_none_0ed7514da927eaf6.manifest
File versionNot applicable
File size2,724
Date (UTC)14-Jan-2011
Time (UTC)05:51
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7601.17542_none_106151cc8d0e7a02.manifest
File versionNot applicable
File size2,724
Date (UTC)14-Jan-2011
Time (UTC)06:26
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7601.21641_none_10e9ee4da62d0075.manifest
File versionNot applicable
File size2,724
Date (UTC)14-Jan-2011
Time (UTC)06:13
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
File nameAmd64_071c10c900cd2cbbb90ba2dd766c5ecb_31bf3856ad364e35_6.1.7600.16739_none_f522136701c6eb8c.manifest
File versionNot applicable
File size703
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameAmd64_078f2f60f760750b851d5caa509efa5b_31bf3856ad364e35_6.1.7601.21641_none_6bc87993d72be299.manifest
File versionNot applicable
File size1,046
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameAmd64_255be03014f239277ac64a1dc5c0fcc5_31bf3856ad364e35_6.1.7600.16739_none_0a03340bbb0fcc14.manifest
File versionNot applicable
File size1,046
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameAmd64_2b0bdbb58744432caa194051c033d3f3_31bf3856ad364e35_6.1.7601.17542_none_b0c761c2af042fd8.manifest
File versionNot applicable
File size703
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameAmd64_497265f3c8e288dac952586f78c3c440_31bf3856ad364e35_6.1.7600.16739_none_5b2d56c367df2580.manifest
File versionNot applicable
File size701
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameAmd64_7be3c8f8aec5cf0f8c14ffe69ad89071_31bf3856ad364e35_6.1.7600.20880_none_d4a4f79a982c1b26.manifest
File versionNot applicable
File size703
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameAmd64_9072ebc8871e2e2b8dd66b9bc2f8863c_31bf3856ad364e35_6.1.7601.17542_none_5e14a72f03d412a5.manifest
File versionNot applicable
File size701
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameAmd64_97bacc8dc841394e960ec02298cc66b3_31bf3856ad364e35_6.1.7601.21641_none_be480eec1bb2a9b5.manifest
File versionNot applicable
File size703
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameAmd64_b81cbc4c07010b6a8c06e007108eec6a_31bf3856ad364e35_6.1.7600.20880_none_6786693bfdb5d920.manifest
File versionNot applicable
File size1,046
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameAmd64_c1915b8e054c71344bfffc75da61d321_31bf3856ad364e35_6.1.7601.17542_none_00b1467b79df153f.manifest
File versionNot applicable
File size1,046
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameAmd64_d79f93b0d4a9097bdafc497df384e8ce_31bf3856ad364e35_6.1.7600.20880_none_8288e475f04f9cf5.manifest
File versionNot applicable
File size701
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameAmd64_e432615ea15feb88ebf280cd03910058_31bf3856ad364e35_6.1.7601.21641_none_cd9842bd4505b5a5.manifest
File versionNot applicable
File size701
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameAmd64_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.16739_none_6aab623c483714bc.manifest
File versionNot applicable
File size2,728
Date (UTC)14-Jan-2011
Time (UTC)07:04
PlatformNot applicable
File nameAmd64_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.20880_none_6af5ecd161855c2c.manifest
File versionNot applicable
File size2,728
Date (UTC)14-Jan-2011
Time (UTC)06:57
PlatformNot applicable
File nameAmd64_microsoft-windows-webservices_31bf3856ad364e35_6.1.7601.17542_none_6c7fed50456beb38.manifest
File versionNot applicable
File size2,728
Date (UTC)14-Jan-2011
Time (UTC)12:51
PlatformNot applicable
File nameAmd64_microsoft-windows-webservices_31bf3856ad364e35_6.1.7601.21641_none_6d0889d15e8a71ab.manifest
File versionNot applicable
File size2,728
Date (UTC)14-Jan-2011
Time (UTC)07:15
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size4,059
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.16739_none_0e8cc6b88fd9a386.manifest
File versionNot applicable
File size2,724
Date (UTC)14-Jan-2011
Time (UTC)06:19
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.20880_none_0ed7514da927eaf6.manifest
File versionNot applicable
File size2,724
Date (UTC)14-Jan-2011
Time (UTC)05:51
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7601.17542_none_106151cc8d0e7a02.manifest
File versionNot applicable
File size2,724
Date (UTC)14-Jan-2011
Time (UTC)06:26
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7601.21641_none_10e9ee4da62d0075.manifest
File versionNot applicable
File size2,724
Date (UTC)14-Jan-2011
Time (UTC)06:13
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
File nameIa64_0cac8812043dce4aac92f980c2f1bdb0_31bf3856ad364e35_6.1.7600.16739_none_605578142c4ac9cf.manifest
File versionNot applicable
File size701
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameIa64_497265f3c8e288dac952586f78c3c440_31bf3856ad364e35_6.1.7600.16739_none_ff105f35af7fbd46.manifest
File versionNot applicable
File size700
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameIa64_6e73eec19f146d8b263f182ae5cea060_31bf3856ad364e35_6.1.7601.21641_none_fafb735f14cdb19b.manifest
File versionNot applicable
File size701
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameIa64_898cddcb09125e8f9c993dc153762fa4_31bf3856ad364e35_6.1.7600.20880_none_5dd26fe00eb4cfe1.manifest
File versionNot applicable
File size701
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameIa64_9072ebc8871e2e2b8dd66b9bc2f8863c_31bf3856ad364e35_6.1.7601.17542_none_01f7afa14b74aa6b.manifest
File versionNot applicable
File size700
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameIa64_b99efbc8be1e13ed5a423937cd6379d8_31bf3856ad364e35_6.1.7601.17542_none_daf11a39b8921fe7.manifest
File versionNot applicable
File size701
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameIa64_d79f93b0d4a9097bdafc497df384e8ce_31bf3856ad364e35_6.1.7600.20880_none_266bece837f034bb.manifest
File versionNot applicable
File size700
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameIa64_e432615ea15feb88ebf280cd03910058_31bf3856ad364e35_6.1.7601.21641_none_717b4b2f8ca64d6b.manifest
File versionNot applicable
File size700
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameIa64_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.16739_none_0e8e6aae8fd7ac82.manifest
File versionNot applicable
File size2,726
Date (UTC)14-Jan-2011
Time (UTC)07:02
PlatformNot applicable
File nameIa64_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.20880_none_0ed8f543a925f3f2.manifest
File versionNot applicable
File size2,726
Date (UTC)14-Jan-2011
Time (UTC)06:43
PlatformNot applicable
File nameIa64_microsoft-windows-webservices_31bf3856ad364e35_6.1.7601.17542_none_1062f5c28d0c82fe.manifest
File versionNot applicable
File size2,726
Date (UTC)14-Jan-2011
Time (UTC)07:14
PlatformNot applicable
File nameIa64_microsoft-windows-webservices_31bf3856ad364e35_6.1.7601.21641_none_10eb9243a62b0971.manifest
File versionNot applicable
File size2,726
Date (UTC)14-Jan-2011
Time (UTC)06:57
PlatformNot applicable
File nameUpdate.mum
File versionNot applicable
File size2,170
Date (UTC)14-Jan-2011
Time (UTC)21:52
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.16739_none_0e8cc6b88fd9a386.manifest
File versionNot applicable
File size2,724
Date (UTC)14-Jan-2011
Time (UTC)06:19
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7600.20880_none_0ed7514da927eaf6.manifest
File versionNot applicable
File size2,724
Date (UTC)14-Jan-2011
Time (UTC)05:51
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7601.17542_none_106151cc8d0e7a02.manifest
File versionNot applicable
File size2,724
Date (UTC)14-Jan-2011
Time (UTC)06:26
PlatformNot applicable
File nameX86_microsoft-windows-webservices_31bf3856ad364e35_6.1.7601.21641_none_10e9ee4da62d0075.manifest
File versionNot applicable
File size2,724
Date (UTC)14-Jan-2011
Time (UTC)06:13
PlatformNot applicable