DetailPage-MSS-KB

Microsoft small business knowledge base

Article ID: 2634907 - Last Review: September 20, 2012 - Revision: 10.0

Hotfix Download Available
View and request hotfix downloads
 

On This Page

Symptoms

Assume that you install Windows 7 or Windows Server 2008 R2 Standard Edition on a computer that has more than 32 gigabytes (GB) of RAM. When the computer tries to communicate with another computer by using the TCP/IP protocol, all the TCP/IP packets that are received out of sequence are discarded. Additionally, the fragmented packets cannot be reassembled.

Note This issue causes retransmission overhead. Additionally, all network-related activity is affected. For example, when you try to perform a file transfer or perform a remote access session on the computer, network performance is affected by the retransmission overhead.

Cause

This issue occurs because the TCP reassembly queue quota computation does not handle the overflow of ulong data correctly.

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 website:
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.

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)
For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
976932  (http://support.microsoft.com/kb/976932/ ) Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To apply this hotfix, 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:
    Collapse this tableExpand this table
    VersionProductMilestoneService branch
    6.1.760 0.16xxxWindows 7 and Windows Server 2008 R2RTMGDR
    6.1.760 0.21xxxWindows 7 and Windows Server 2008 R2RTMLDR
    6.1.760 1.17xxxWindows 7 and Windows Server 2008 R2SP1GDR
    6.1.760 1.22xxxWindows 7 and Windows Server 2008 R2SP1LDR
  • GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
  • 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 7 and for Windows Server 2008 R2" section. MUM and MANIFEST files, and the associated security catalog (.cat) files, are extremely important to maintaining the state of the updated component. 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
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Netio.sys6.1.7601.17923240,49607-Aug-201217:14x86
Netio.sys6.1.7601.22080240,48007-Aug-201217:10x86
Fwpkclnt.sys6.1.7600.16385187,47214-Jul-200901:20x86
Tcpip.sys6.1.7600.170921,287,02407-Aug-201217:22x86
Fwpkclnt.sys6.1.7600.21294187,24807-Aug-201219:04x86
Tcpip.sys6.1.7600.212941,303,92007-Aug-201219:05x86
Fwpkclnt.sys6.1.7601.17923187,76007-Aug-201217:13x86
Tcpip.sys6.1.7601.179231,292,12807-Aug-201217:14x86
Fwpkclnt.sys6.1.7601.22080187,76007-Aug-201217:10x86
Tcpip.sys6.1.7601.220801,306,99207-Aug-201217:10x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Netio.sys6.1.7601.17923376,68807-Aug-201218:16x64
Netio.sys6.1.7601.22080376,67207-Aug-201218:06x64
Fwpkclnt.sys6.1.7600.16385288,33614-Jul-200901:47x64
Tcpip.sys6.1.7600.170921,895,26407-Aug-201218:07x64
Fwpkclnt.sys6.1.7600.21294288,11207-Aug-201218:04x64
Tcpip.sys6.1.7600.212941,877,85607-Aug-201218:04x64
Fwpkclnt.sys6.1.7601.17923288,62407-Aug-201218:16x64
Tcpip.sys6.1.7601.179231,913,18407-Aug-201218:17x64
Fwpkclnt.sys6.1.7601.22080288,62407-Aug-201218:06x64
Tcpip.sys6.1.7601.220801,901,93607-Aug-201218:06x64
For all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Netio.sys6.1.7601.17923711,00807-Aug-201216:47IA-64
Netio.sys6.1.7601.22080711,00807-Aug-201216:51IA-64
Fwpkclnt.sys6.1.7600.16385482,89614-Jul-200901:58IA-64
Tcpip.sys6.1.7600.170923,787,61607-Aug-201216:51IA-64
Fwpkclnt.sys6.1.7600.21294482,65607-Aug-201216:46IA-64
Tcpip.sys6.1.7600.212943,807,07207-Aug-201216:46IA-64
Fwpkclnt.sys6.1.7601.17923483,18407-Aug-201216:47IA-64
Tcpip.sys6.1.7601.179233,791,71207-Aug-201216:48IA-64
Fwpkclnt.sys6.1.7601.22080483,18407-Aug-201216:51IA-64
Tcpip.sys6.1.7601.220803,816,30407-Aug-201216:51IA-64

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 software update terminology, 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

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
Collapse this tableExpand this table
File nameX86_24fc93aad1d40f6462f8f12171ac9c7c_31bf3856ad364e35_6.1.7601.22080_none_0be6bde70b30dfca.manifest
File versionNot applicable
File size1,054
Date (UTC)08-Aug-2012
Time (UTC)13:01
PlatformNot applicable
File nameX86_5a970e4e83ed26ca91ec6264389fe3d3_31bf3856ad364e35_6.1.7601.17923_none_b2585f4fde7655f7.manifest
File versionNot applicable
File size1,054
Date (UTC)08-Aug-2012
Time (UTC)13:01
PlatformNot applicable
File nameX86_9f4fd57e8f00fd2a2f255681e8d4b611_31bf3856ad364e35_6.1.7600.17092_none_a8d3de2ec4761d0f.manifest
File versionNot applicable
File size702
Date (UTC)08-Aug-2012
Time (UTC)13:01
PlatformNot applicable
File nameX86_ecc5ed9ed9b3be96b44543c7d02c2574_31bf3856ad364e35_6.1.7600.21294_none_48a3bc1fb1768a13.manifest
File versionNot applicable
File size702
Date (UTC)08-Aug-2012
Time (UTC)13:01
PlatformNot applicable
File nameX86_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.1.7601.17923_none_58970e23139897a0.manifest
File versionNot applicable
File size2,540
Date (UTC)07-Aug-2012
Time (UTC)17:36
PlatformNot applicable
File nameX86_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.1.7601.22080_none_58dca0c42ce9c926.manifest
File versionNot applicable
File size2,540
Date (UTC)07-Aug-2012
Time (UTC)17:31
PlatformNot applicable
File nameX86_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7600.17092_none_b2e67b31c7c4c87f.manifest
File versionNot applicable
File size3,780
Date (UTC)08-Aug-2012
Time (UTC)13:05
PlatformNot applicable
File nameX86_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7600.21294_none_b3721a76e0e0981e.manifest
File versionNot applicable
File size3,834
Date (UTC)07-Aug-2012
Time (UTC)19:24
PlatformNot applicable
File nameX86_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7601.17923_none_b519b39fc4b15137.manifest
File versionNot applicable
File size3,834
Date (UTC)07-Aug-2012
Time (UTC)17:40
PlatformNot applicable
File nameX86_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7601.22080_none_b55f4640de0282bd.manifest
File versionNot applicable
File size3,834
Date (UTC)07-Aug-2012
Time (UTC)17:36
PlatformNot applicable
Additional files for all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameAmd64_33efc609c771298a0df5c3ecd80bfb03_31bf3856ad364e35_6.1.7601.22080_none_9a093e14e2ae0701.manifest
File versionNot applicable
File size1,060
Date (UTC)08-Aug-2012
Time (UTC)13:01
PlatformNot applicable
File nameAmd64_355cac9a625161c2e688e3180684e486_31bf3856ad364e35_6.1.7601.22080_none_02d6a726cd289a13.manifest
File versionNot applicable
File size712
Date (UTC)08-Aug-2012
Time (UTC)13:01
PlatformNot applicable
File nameAmd64_4651d4e94ce0707db5d381da9ae29e22_31bf3856ad364e35_6.1.7601.17923_none_50450e65a8982f4f.manifest
File versionNot applicable
File size712
Date (UTC)08-Aug-2012
Time (UTC)13:01
PlatformNot applicable
File nameAmd64_52150af570ea29f6482491a84cfb1f0d_31bf3856ad364e35_6.1.7601.22080_none_dc8af485bf552568.manifest
File versionNot applicable
File size1,414
Date (UTC)08-Aug-2012
Time (UTC)13:01
PlatformNot applicable
File nameAmd64_739ebca1043e28ef158bbb830cca5f16_31bf3856ad364e35_6.1.7601.17923_none_058a7075e2141e36.manifest
File versionNot applicable
File size1,060
Date (UTC)08-Aug-2012
Time (UTC)13:01
PlatformNot applicable
File nameAmd64_9ac7de29322600e79a01460282f0f7a7_31bf3856ad364e35_6.1.7601.17923_none_eb7f84bf4d1a46eb.manifest
File versionNot applicable
File size1,414
Date (UTC)08-Aug-2012
Time (UTC)13:01
PlatformNot applicable
File nameAmd64_b978dce898efe5a57520304c424c7a7f_31bf3856ad364e35_6.1.7600.17092_none_5484f49623eeda54.manifest
File versionNot applicable
File size706
Date (UTC)08-Aug-2012
Time (UTC)13:01
PlatformNot applicable
File nameAmd64_dd911fb6cad4c94ee2aa52a49fb13c1f_31bf3856ad364e35_6.1.7600.21294_none_05468f96c5c58557.manifest
File versionNot applicable
File size706
Date (UTC)08-Aug-2012
Time (UTC)13:01
PlatformNot applicable
File nameAmd64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.1.7601.17923_none_b4b5a9a6cbf608d6.manifest
File versionNot applicable
File size2,542
Date (UTC)07-Aug-2012
Time (UTC)18:40
PlatformNot applicable
File nameAmd64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.1.7601.22080_none_b4fb3c47e5473a5c.manifest
File versionNot applicable
File size2,542
Date (UTC)07-Aug-2012
Time (UTC)18:30
PlatformNot applicable
File nameAmd64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7600.17092_none_0f0516b5802239b5.manifest
File versionNot applicable
File size3,784
Date (UTC)08-Aug-2012
Time (UTC)13:08
PlatformNot applicable
File nameAmd64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7600.21294_none_0f90b5fa993e0954.manifest
File versionNot applicable
File size3,838
Date (UTC)07-Aug-2012
Time (UTC)20:20
PlatformNot applicable
File nameAmd64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7601.17923_none_11384f237d0ec26d.manifest
File versionNot applicable
File size3,838
Date (UTC)07-Aug-2012
Time (UTC)18:44
PlatformNot applicable
File nameAmd64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7601.22080_none_117de1c4965ff3f3.manifest
File versionNot applicable
File size3,838
Date (UTC)07-Aug-2012
Time (UTC)18:34
PlatformNot applicable
File nameWow64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.1.7601.17923_none_bf0a53f90056cad1.manifest
File versionNot applicable
File size1,166
Date (UTC)07-Aug-2012
Time (UTC)17:22
PlatformNot applicable
File nameWow64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.1.7601.22080_none_bf4fe69a19a7fc57.manifest
File versionNot applicable
File size1,166
Date (UTC)07-Aug-2012
Time (UTC)17:19
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameIa64_542d701f5d4498750813332622c44a07_31bf3856ad364e35_6.1.7601.17923_none_22fb290c7443b438.manifest
File versionNot applicable
File size1,411
Date (UTC)08-Aug-2012
Time (UTC)13:01
PlatformNot applicable
File nameIa64_5a4db9694c9341a2e3b96364160b0503_31bf3856ad364e35_6.1.7600.17092_none_5254df73f4c736b2.manifest
File versionNot applicable
File size704
Date (UTC)08-Aug-2012
Time (UTC)13:01
PlatformNot applicable
File nameIa64_ad03d321ede12fe0425ea8b1d55d466d_31bf3856ad364e35_6.1.7600.21294_none_fc15be90ede0de4b.manifest
File versionNot applicable
File size704
Date (UTC)08-Aug-2012
Time (UTC)13:01
PlatformNot applicable
File nameIa64_f54adc8037d1732e8e5a600f1707a2e9_31bf3856ad364e35_6.1.7601.22080_none_52e7b2f0830732f6.manifest
File versionNot applicable
File size1,411
Date (UTC)08-Aug-2012
Time (UTC)13:01
PlatformNot applicable
File nameIa64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.1.7601.17923_none_5898b2191396a09c.manifest
File versionNot applicable
File size2,541
Date (UTC)07-Aug-2012
Time (UTC)18:26
PlatformNot applicable
File nameIa64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.1.7601.22080_none_58de44ba2ce7d222.manifest
File versionNot applicable
File size2,541
Date (UTC)07-Aug-2012
Time (UTC)18:28
PlatformNot applicable
File nameIa64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7600.17092_none_b2e81f27c7c2d17b.manifest
File versionNot applicable
File size3,782
Date (UTC)08-Aug-2012
Time (UTC)13:01
PlatformNot applicable
File nameIa64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7600.21294_none_b373be6ce0dea11a.manifest
File versionNot applicable
File size3,836
Date (UTC)07-Aug-2012
Time (UTC)20:10
PlatformNot applicable
File nameIa64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7601.17923_none_b51b5795c4af5a33.manifest
File versionNot applicable
File size3,836
Date (UTC)07-Aug-2012
Time (UTC)18:31
PlatformNot applicable
File nameIa64_microsoft-windows-tcpip-binaries_31bf3856ad364e35_6.1.7601.22080_none_b560ea36de008bb9.manifest
File versionNot applicable
File size3,836
Date (UTC)07-Aug-2012
Time (UTC)18:32
PlatformNot applicable
File nameWow64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.1.7601.17923_none_bf0a53f90056cad1.manifest
File versionNot applicable
File size1,166
Date (UTC)07-Aug-2012
Time (UTC)17:22
PlatformNot applicable
File nameWow64_microsoft-windows-netio-infrastructure_31bf3856ad364e35_6.1.7601.22080_none_bf4fe69a19a7fc57.manifest
File versionNot applicable
File size1,166
Date (UTC)07-Aug-2012
Time (UTC)17:19
PlatformNot applicable

Applies to
  • Windows Server 2008 R2 Standard
  • Windows 7 Enterprise
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows 7 Professional
  • Windows 7 Starter
  • Windows 7 Ultimate
Keywords: 
kbqfe kbautohotfix kbhotfixserver kbsurveynew kbexpertiseadvanced kbfix KB2634907
Share
Additional support options
Ask The Microsoft Small Business Support Community
Contact Microsoft Small Business Support
Find Microsoft Small Business Support Certified Partner
Find a Microsoft Store For In-Person Small Business Support