Live Communications Server 2005: Description of the update for Live Communications Server 2005 Service Pack 1: September 2008

SUPPORT SOLUTION:
This article describes an update for Live Communications
Server 2005 Service Pack 1 (SP1) that is dated September 2008..The changes that the update contains The
authentication protocol that is used by Microsoft Office Live Communications
Server 2005 and its clients has been updated to require a signature in all
messages. This includes the first message that carries the challenge response.
The version number of the protocol that is advertised in the challenge response
has been increased to 2. Challenge responses that use version 2 of this
protocol must contain a signature. The signature is a digest of the identifying
headers in the message. The signature
is calculated by using the session key. Additionally, to make sure
that Communicator 2005 works effectively against this update, a hotfix for
Communicator 2005 will be released soon.
.Update information 3, The
following file is available for download from the Microsoft Download
Center:Download
the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=327C9224-E1E8-45F7-A527-195C73EF49B3) Release Date: September 2008 For more information about
how to download Microsoft support files, click the following article number to
view the article in the Microsoft Knowledge Base: 119591 (http://support.microsoft.com/kb/119591/) How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most
current virus-detection software that was available on the date that the file
was posted. The file is stored on security-enhanced servers that help prevent
any unauthorized changes to the file.
Important This update must be applied to servers that are configured in the
following server roles:
• Office Live Communication Server 2005 Standard Edition
(SE) servers • Office Live Communication Server 2005 Enterprise Edition
(EE) front-end servers •Servers that are configured as Director •Servers that are configured as Access Proxy Prerequisites 3, The following list contains prerequisites for the hotfix:
•To apply this update, you must have Office Live
Communications Server 2005 Service Pack 1 (SP1) installed.
For more information about how to obtain
Live Communications Server 2005 SP1, click the following article number to view
the article in the Microsoft Knowledge Base: 897674 (http://support.microsoft.com/kb/897674/)

How to obtain Live Communications Server 2005 Service Pack 1

•To apply this update, you must have hotfix 911996 applied.
For more information about
hotfix 911996, click the following article number to view the article in the
Microsoft Knowledge Base: 911996 (http://support.microsoft.com/kb/911996/)

Description of the update for Live
Communications Server 2005: February 10, 2006, rereleased July 11,
2006

Restart information 3, You do
not have to restart the computer after you apply this update.Update replacement information 3, This update does not replace any other updates.File information 3, This update may not contain
all the files that you must have to fully update a product to the latest build.
This update contains only the files that you must have to correct the issues
that are listed in this article. The English version of this update 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.File nameFile versionFile
sizeDateTimePlatformSipstack.dll
2.0.5470.10471,284,09618-July-200820:17
x86. 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

.

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