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A connection to a load-balancing Exchange mailbox from an Outlook client fails on a computer that is running Windows Vista, Windows Server 2008, Windows 7, or Windows Server 2008 R2

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Microsoft Knowledge Base Article

This article contents is Microsoft Copyrighted material.
©2005-©2007 Microsoft Corporation. All rights reserved. Terms of Use | Trademarks
Article ID: 2408168 - Last Review: February 14, 2011 - Revision: 3.0

A connection to a load-balancing Exchange mailbox from an Outlook client fails on a computer that is running Windows Vista, Windows Server 2008, Windows 7, or Windows Server 2008 R2

Hotfix download is availableHotfix Download Available
View and request hotfix downloads
View products that this article applies to.

On This Page

SYMPTOMS

Consider the following scenario:
  • You run a Microsoft Outlook client in one of the following operating systems:
    • Windows Vista
    • Windows 7
    • Windows Server 2008
    • Windows Server 2008 R2
  • You configure the Outlook client to connect to a Microsoft Exchange mailbox on the node of a load-balancing server.
In this scenario, the connection to the Exchange mailbox from the Outlook client fails.
Back to the top

CAUSE

This issue occurs because of multiple problems in the RPC over HTTP Load Balancing Service (LBS) functionality.
Back to the top

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 Vista Service Pack 1 (SP1)
  • Windows Vista Service Pack 2 (SP2)
  • Windows Server 2008
  • Windows Server 2008 Service Pack 2 (SP2)
  • Windows 7
  • Windows Server 2008 R2
For more information about how to obtain a Windows Vista service pack, click the following article number to view the article in the Microsoft Knowledge Base:
935791  (http://kbalertz.com/Feedback.aspx?kbNumber=935791/ ) How to obtain the latest Windows Vista service pack
For more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
968849  (http://kbalertz.com/Feedback.aspx?kbNumber=968849/ ) How to obtain the latest service pack for Windows Server 2008

Registry information

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

Restart requirement

You have to 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 Vista and Windows Server 2008 file information notes
Important Windows Vista hotfixes and Windows Server 2008 hotfixes are included in the same packages. However, only "Windows Vista" is listed on the Hotfix Request page. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows Vista" 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
    VersionProductSR_LevelService branch
    6.0.600 1 . 22xxxWindows Vista and Windows Server 2008SP1LDR
    6.0.600 2 . 22xxxWindows Vista and Windows Server 2008SP2LDR
  • Service Pack 1 is integrated into the release version of Windows Server 2008.
  • The MANIFEST files (.manifest) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 and for Windows Vista" section. 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 Server 2008 and of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Rpchttp.dll6.0.6001.22762128,00013-Sep-201016:04x86
Rpchttp.dll6.0.6002.22486128,00013-Sep-201017:40x86
Lbservice.dll6.0.6001.2276220,99213-Sep-201016:02x86
Rpcproxy.dll6.0.6001.2276248,64013-Sep-201016:04x86
Rpcproxymigrationplugin.dll6.0.6001.2276238,40013-Sep-201016:04x86
Lbservice.dll6.0.6002.2248620,99213-Sep-201017:38x86
Rpcproxy.dll6.0.6002.2248648,64013-Sep-201017:40x86
Rpcproxymigrationplugin.dll6.0.6002.2248638,40013-Sep-201017:40x86
For all supported x64-based versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Rpchttp.dll6.0.6001.22762164,86413-Sep-201014:58x64
Rpchttp.dll6.0.6002.22486164,86413-Sep-201017:15x64
Lbservice.dll6.0.6001.2276224,06413-Sep-201014:56x64
Rpcproxy.dll6.0.6001.2276257,85613-Sep-201014:58x64
Rpcproxymigrationplugin.dll6.0.6001.2276244,03213-Sep-201014:58x64
Lbservice.dll6.0.6002.2248624,06413-Sep-201017:13x64
Rpcproxy.dll6.0.6002.2248658,36813-Sep-201017:15x64
Rpcproxymigrationplugin.dll6.0.6002.2248644,03213-Sep-201017:15x64
For all supported IA-64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Rpchttp.dll6.0.6001.22762372,22413-Sep-201015:58IA-64
Rpchttp.dll6.0.6002.22486372,22413-Sep-201017:14IA-64
Lbservice.dll6.0.6001.2276241,47213-Sep-201015:55IA-64
Rpcproxy.dll6.0.6001.22762116,22413-Sep-201015:58IA-64
Rpcproxymigrationplugin.dll6.0.6001.22762102,91213-Sep-201015:58IA-64
Lbservice.dll6.0.6002.2248641,47213-Sep-201017:12IA-64
Rpcproxy.dll6.0.6002.22486116,73613-Sep-201017:14IA-64
Rpcproxymigrationplugin.dll6.0.6002.22486102,91213-Sep-201017:14IA-64
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, milestone (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 0.20xxxWindows 7 and Windows Server 2008 R2RTMLDR
  • The MANIFEST files (.manifest) that are installed for each environment are listed separately in the "Additional file information for Windows Server 2008 R2 and for Windows 7" section. 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
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Rpchttp.dll6.1.7600.20835139,26411-Nov-201005:33x86
For all supported x64-based versions of Windows 7 and of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Rpchttp.dll6.1.7600.20835187,90411-Nov-201006:29x64
Lbservice.dll6.1.7600.2083524,57611-Nov-201006:26x64
Rpcproxy.dll6.1.7600.2083558,36811-Nov-201006:29x64
Rpchttp.dll6.1.7600.20835139,26411-Nov-201005:33x86
For all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Rpchttp.dll6.1.7600.20835397,31211-Nov-201005:12IA-64
Lbservice.dll6.1.7600.2083545,56811-Nov-201005:11IA-64
Rpcproxy.dll6.1.7600.20835120,32011-Nov-201005:12IA-64
Rpchttp.dll6.1.7600.20835139,26411-Nov-201005:33x86
Back to the top

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Back to the top

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://kbalertz.com/Feedback.aspx?kbNumber=824684/ ) Description of the standard terminology that is used to describe Microsoft software updates
Back to the top

Additional file information

Additional file information for Windows Vista and for Windows Server 2008

Additional files for all supported x86-based versions of Windows Vista and of Windows Server 2008
Collapse this tableExpand this table
File nameX86_1c0149eae401978ed87f88a1527f5eae_31bf3856ad364e35_6.0.6002.22486_none_8de9a28c9b58cd53.manifest
File versionNot applicable
File size702
Date (UTC)14-Sep-2010
Time (UTC)07:41
PlatformNot applicable
File nameX86_51ba4b7186c5a6e5dcbc767d0cf954fc_31bf3856ad364e35_6.0.6002.22486_none_21bf0f788704dd39.manifest
File versionNot applicable
File size696
Date (UTC)14-Sep-2010
Time (UTC)07:41
PlatformNot applicable
File nameX86_6af78c16a73f31efb9f6063d8cae400f_31bf3856ad364e35_6.0.6001.22762_none_aceb0c0ffa4448a8.manifest
File versionNot applicable
File size702
Date (UTC)14-Sep-2010
Time (UTC)07:41
PlatformNot applicable
File nameX86_9ae0cb1cd390fa827a74182a2e4e4c90_31bf3856ad364e35_6.0.6001.22762_none_0bb910799aaeede9.manifest
File versionNot applicable
File size696
Date (UTC)14-Sep-2010
Time (UTC)07:41
PlatformNot applicable
File nameX86_microsoft-windows-rpc-http_31bf3856ad364e35_6.0.6001.22762_none_a043b62b58a052b6.manifest
File versionNot applicable
File size7,646
Date (UTC)13-Sep-2010
Time (UTC)16:21
PlatformNot applicable
File nameX86_microsoft-windows-rpc-http_31bf3856ad364e35_6.0.6002.22486_none_a218896355d34518.manifest
File versionNot applicable
File size7,646
Date (UTC)13-Sep-2010
Time (UTC)18:02
PlatformNot applicable
File nameX86_microsoft-windows-rpc-http_proxy_31bf3856ad364e35_6.0.6001.22762_none_6c0885d734f1408d.manifest
File versionNot applicable
File size33,944
Date (UTC)13-Sep-2010
Time (UTC)16:20
PlatformNot applicable
File nameX86_microsoft-windows-rpc-http_proxy_31bf3856ad364e35_6.0.6002.22486_none_6ddd590f322432ef.manifest
File versionNot applicable
File size33,944
Date (UTC)13-Sep-2010
Time (UTC)18:01
PlatformNot applicable
Additional files for all supported x64-based versions of Windows Vista and of Windows Server 2008
Collapse this tableExpand this table
File nameAmd64_77737ad01fa7dde77283e2b0ca645827_31bf3856ad364e35_6.0.6002.22486_none_c4fcebcfa79ac33d.manifest
File versionNot applicable
File size1,040
Date (UTC)14-Sep-2010
Time (UTC)07:41
PlatformNot applicable
File nameAmd64_89b5a8a3a5f51c3caa9d012a90d8b740_31bf3856ad364e35_6.0.6002.22486_none_c25037b5b44b5b5a.manifest
File versionNot applicable
File size706
Date (UTC)14-Sep-2010
Time (UTC)07:41
PlatformNot applicable
File nameAmd64_c6926936a117704e3eaa89147fbe39eb_31bf3856ad364e35_6.0.6001.22762_none_4741fc742b114aaa.manifest
File versionNot applicable
File size706
Date (UTC)14-Sep-2010
Time (UTC)07:41
PlatformNot applicable
File nameAmd64_e4dde7d885a09feccd0cd5914a8a4791_31bf3856ad364e35_6.0.6001.22762_none_5c389967cc088d79.manifest
File versionNot applicable
File size1,040
Date (UTC)14-Sep-2010
Time (UTC)07:41
PlatformNot applicable
File nameAmd64_microsoft-windows-rpc-http_31bf3856ad364e35_6.0.6001.22762_none_fc6251af10fdc3ec.manifest
File versionNot applicable
File size7,678
Date (UTC)13-Sep-2010
Time (UTC)15:13
PlatformNot applicable
File nameAmd64_microsoft-windows-rpc-http_31bf3856ad364e35_6.0.6002.22486_none_fe3724e70e30b64e.manifest
File versionNot applicable
File size7,678
Date (UTC)13-Sep-2010
Time (UTC)17:35
PlatformNot applicable
File nameAmd64_microsoft-windows-rpc-http_proxy_31bf3856ad364e35_6.0.6001.22762_none_c827215aed4eb1c3.manifest
File versionNot applicable
File size33,985
Date (UTC)13-Sep-2010
Time (UTC)15:12
PlatformNot applicable
File nameAmd64_microsoft-windows-rpc-http_proxy_31bf3856ad364e35_6.0.6002.22486_none_c9fbf492ea81a425.manifest
File versionNot applicable
File size33,985
Date (UTC)13-Sep-2010
Time (UTC)17:35
PlatformNot applicable
Additional files for all supported IA-64-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameIa64_60383d7f80cce8ea686858875c5df89e_31bf3856ad364e35_6.0.6001.22762_none_c9e5a46f0e6140f6.manifest
File versionNot applicable
File size1,038
Date (UTC)14-Sep-2010
Time (UTC)07:41
PlatformNot applicable
File nameIa64_786dd0604c7133f515abffe80862c7c6_31bf3856ad364e35_6.0.6002.22486_none_0f92ab1802597a6f.manifest
File versionNot applicable
File size1,038
Date (UTC)14-Sep-2010
Time (UTC)07:41
PlatformNot applicable
File nameIa64_dfecd55947c9496ede90495dd9d48ab3_31bf3856ad364e35_6.0.6001.22762_none_c894c627cceb2368.manifest
File versionNot applicable
File size704
Date (UTC)14-Sep-2010
Time (UTC)07:41
PlatformNot applicable
File nameIa64_ff32313781ffb1dd2880f1f161ff3253_31bf3856ad364e35_6.0.6002.22486_none_87c2ea41e98dc7ac.manifest
File versionNot applicable
File size704
Date (UTC)14-Sep-2010
Time (UTC)07:41
PlatformNot applicable
File nameIa64_microsoft-windows-rpc-http_31bf3856ad364e35_6.0.6001.22762_none_a0455a21589e5bb2.manifest
File versionNot applicable
File size7,660
Date (UTC)13-Sep-2010
Time (UTC)16:13
PlatformNot applicable
File nameIa64_microsoft-windows-rpc-http_31bf3856ad364e35_6.0.6002.22486_none_a21a2d5955d14e14.manifest
File versionNot applicable
File size7,660
Date (UTC)13-Sep-2010
Time (UTC)17:31
PlatformNot applicable
File nameIa64_microsoft-windows-rpc-http_proxy_31bf3856ad364e35_6.0.6001.22762_none_6c0a29cd34ef4989.manifest
File versionNot applicable
File size33,964
Date (UTC)13-Sep-2010
Time (UTC)16:12
PlatformNot applicable
File nameIa64_microsoft-windows-rpc-http_proxy_31bf3856ad364e35_6.0.6002.22486_none_6ddefd0532223beb.manifest
File versionNot applicable
File size33,964
Date (UTC)13-Sep-2010
Time (UTC)17:31
PlatformNot applicable

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_microsoft-windows-rpc-http_31bf3856ad364e35_6.1.7600.20835_none_a08ef712b99c87d0.manifest
File versionNot Applicable
File size8,684
Date (UTC)11-Nov-2010
Time (UTC)06:10
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_microsoft-windows-rpc-http_31bf3856ad364e35_6.1.7600.20835_none_fcad929671f9f906.manifest
File versionNot Applicable
File size8,688
Date (UTC)11-Nov-2010
Time (UTC)07:13
PlatformNot Applicable
File nameAmd64_microsoft-windows-rpc-http_proxy_31bf3856ad364e35_6.1.7600.20835_none_c87262424e4ae6dd.manifest
File versionNot Applicable
File size25,932
Date (UTC)11-Nov-2010
Time (UTC)18:09
PlatformNot Applicable
File nameUpdate.mum
File versionNot Applicable
File size14,294
Date (UTC)11-Nov-2010
Time (UTC)18:02
PlatformNot Applicable
File nameX86_microsoft-windows-rpc-http_31bf3856ad364e35_6.1.7600.20835_none_a08ef712b99c87d0.manifest
File versionNot Applicable
File size8,684
Date (UTC)11-Nov-2010
Time (UTC)06:10
PlatformNot Applicable
Additional files for all supported IA-64-based versions of Windows Server 2008 R2
Collapse this tableExpand this table
File nameIa64_microsoft-windows-rpc-http_31bf3856ad364e35_6.1.7600.20835_none_a0909b08b99a90cc.manifest
File versionNot Applicable
File size8,686
Date (UTC)11-Nov-2010
Time (UTC)06:51
PlatformNot Applicable
File nameIa64_microsoft-windows-rpc-http_proxy_31bf3856ad364e35_6.1.7600.20835_none_6c556ab495eb7ea3.manifest
File versionNot Applicable
File size25,930
Date (UTC)11-Nov-2010
Time (UTC)18:02
PlatformNot Applicable
File nameUpdate.mum
File versionNot Applicable
File size2,955
Date (UTC)11-Nov-2010
Time (UTC)18:02
PlatformNot Applicable
File nameX86_microsoft-windows-rpc-http_31bf3856ad364e35_6.1.7600.20835_none_a08ef712b99c87d0.manifest
File versionNot Applicable
File size8,684
Date (UTC)11-Nov-2010
Time (UTC)06:10
PlatformNot Applicable
Back to the top
APPLIES TO
  • Windows Vista Business
  • Windows Vista Business 64-bit Edition
  • Windows Vista Enterprise
  • Windows Vista Home Basic
  • Windows Vista Home Premium
  • Windows Vista Ultimate
  • 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 Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 for Itanium-Based Systems
  • Windows Server 2008 Foundation
  • Windows Server 2008 Standard without Hyper-V
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Standard
  • Windows Web Server 2008
  • Windows 7 Enterprise
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows 7 Professional
  • Windows 7 Ultimate
  • Windows Web Server 2008 R2
  • Windows Server 2008 R2 Datacenter
  • Windows Server 2008 R2 Enterprise
  • Windows Server 2008 R2 for Itanium-Based Systems
  • Windows Server 2008 R2 Foundation
  • Windows Server 2008 R2 Standard
Back to the top
Keywords: 
kbautohotfix kbqfe kbhotfixserver kbfix kbsurveynew kbexpertisebeginner KB2408168
Back to the top
        

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