Office Communications Server 2007 R2 Cumulative Update 5

Last week Microsoft released cumulative update 5 of Office Communications Server 2007 R2.
This package consists of updates for the OCS Servers, Communicator, Attendant Console, Communicator Phone and OCS Group Chat.

The most easiest way to apply the necessary server updates is to download the Cumulative Server Update Installer "ServerUpdateInstaller.exe" and run this on all your OCS Servers.
The installer will automatically detect and update the appropriate OCS components.

There is also an update released for the OCS SQL Database called "OCS2009-DBUpgrade.msi". This update is not part of the update installer and needs to be downloaded and installed separately.

Before you install this update, the Office Communications Server Front End Service (rtcsrv) has to be stopped. After stopping the service run one of the following commands:
OCS Standard Edition: OCS2009-DBUpgrade.msi
OCS Enterprise Edition: OCS2009-DBUpgrade.msi POOLNAME=<ocspoolname>

The updates can be found on the following locations:

Office Communcations Server 2007 R2:
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=b3b02475-150c-41fa-844a-c10a517040f4
 
Office Communicator 2007 R2:
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=515d6dba-4c6a-48bb-a06a-d99c5742676d
 
Office Communications Server Attendant Console R2:
http://www.microsoft.com/downloads/details.aspx?FamilyID=36beb56d-072e-4a92-b781-a1e8a548a5ac&displaylang=en&displaylang=en

Office Communicator Phone Edition R2:
http://www.microsoft.com/downloads/details.aspx?familyid=565595BE-6CF3-4A61-A1E4-12555749CA64&displaylang=en

Office Communications Server 2007 R2 Group Chat:
http://www.microsoft.com/downloads/details.aspx?FamilyID=e5924bf9-b042-4c53-b4a6-79c7e5c9749b&displaylang=en