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An update is available for Lync Server 2010 to remove the LastActive attribute from the aggregation state category

Article ID: 2684128 - View products that this article applies to.

SUMMARY

This article describes an update that is available for Microsoft Lync Server 2010 to remove the LastActive attribute from the aggregation state category.

Note The Lync Server 2010 presence scheme includes a method for calculating and displaying how long a user has been away or offline. This is known as "Last Active." The LastActive attribute returns presence inquiries only from users who have the "Colleagues," "Workgroup," and "Friends and Family" privacy relationships. For more information about presence information in Lync Server 2010, see the "References" section.

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Introduction

Lync Server 2010 always calculates the Last Active time stamp during presence aggregation for each user and stores it in a database. Last Active presence information is retrieved to satisfy individual presence inquiries and subscriptions by other users. This occurs according to the access level that the users were assigned. The design of the Last Active presence information has changed for the following reasons:

Last Active presence information may be incorrectly interpreted as reflecting the actual user’s status at work. Therefore, users may rely on it to remotely monitor an employee’s activity. However, this behavior is not allowed in some countries.
Last Active presence information that is provided to users should not disclose how long a user is away or offline for business reasons.

Note The aggregate presence data that is calculated by Lync Server 2010 contains the status history of each user’s endpoints if a user is signed to multiple endpoints. The status of each endpoint changes automatically in response to system events (such as logon, logoff, workstation lock and unlock, and network connectivity events), configured timeouts, scheduled meetings, and user activity. The status of each endpoint can also be changed manually by the user. In this situation, Last Active presence information cannot be considered as an accurate measure of the user’s presence. Instead, Last Active presence information is intended to provide additional information about the user’s availability and willingness to communicate.

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MORE INFORMATION

To apply the update, click the following article number to view the article in the Microsoft Knowledge Base:

2698370

(http://support.microsoft.com/kb/2698370/ )

Description of the update for Lync Server 2010: April 2012

After you apply the update, you have to add a configuration entry in the configuration file on each instance of Lync Server 2010 for which you want to remove the LastActive attribute. To do this, follow these steps:

Create a text file that is named Rtcaggregate.exe.config and that includes the following configuration entry:

<configuration>
    <appSettings>
      <add key="PublishLastActive" value="false" />
    </appSettings>
</configuration>

Save the file to the following folder:
%Installation Folder%\Microsoft Lync Server 2010\Server\Core\
Copy this file to the %Installation Folder%\Microsoft Lync Server 2010\Server\Core\ folder on every front-end computer in the pool in which you want to remove the LastActive attribute.
Restart the Front-End Server service (RtcSrv) to apply these changes.

Note This resolution affects only new data that is published after the update is applied. It does not fix old data.

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RESOLUTION

To resolve this issue, install the following update:

2701585

(http://support.microsoft.com/kb/2701585 / )

Description of the update for Lync Server 2010: June 2012

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WORKAROUND

To work around this issue, users can change the privacy relationship of other users to the External Contacts option. In this configuration, other users can see less information than in the other privacy relationship options. For example, in this configuration, other users cannot see a meeting's subject and location.

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