[tweetmeme source=”stalehansen” only_single=false]Server 2008 R2 is now supported by OCS 2007 R2. As a follow-up to my post on Installing OCS 2007 R2 Prerequisites on Windows Server 2008 I will in this post describe how you can install OCS 2007 R2 prerequisites on Server 2008 R2. While you need to install the same prerequisites on both OS’ there is a change in what commands you use and you also need to prepare the server in a different way when you are installing on Server 2008 R2

Part one – Before you install OCS 2007 R2 binaries

• Open powershell as administrator and run the following commands
  • Import-Module ServerManager
  • Add-WindowsFeature as-net-framework,desktop-experience,telnet-client
    • This installs the following features
      • [As-Net-Framework] – .Net Framework 3.5 SP1
      • [Desktop-Experience] – Desktop Experience
      • [Telnet-Client] – Telnet Client (recommended not required)
• Request the Hotfix that is described in KB975858 for Windows Server 2008 R2
  • You need to request it, then you recieve a link by email, from there you can download and install it
• Install the prerequisites for the specific role as described in part three
• Run Windows Update untill everything is updated
• Install the OCS 2007 binaries for the role you are installing

Part two – After you install OCS 2007 R2 binaries

• When you try to activate OCS 2007 R2 Standard Edition, Enterprise Edition or Edge Server role when all windows updates are installed it fails
  • Download and install OCSASNFix.exe
  • Re-run the activation wizard
• Download and install the latest cumulative updates for OCS 2007 R2
  • I recommend downloading ServerUpdateInstaller.exe that features all the updates and will install the ones necessary for the specific role
  • You need to manually update the Pool DB
    • Guide for updating the pool DB can be found here: https://msunified.net/2009/11/08/how-to-install-ocs2009-dbupgrade/
  • After installing the latest cumulative updates I have experienced that some services can’t start when you reboot the server, the symptoms are
    • It takes long time before you can RDP the server after reboot
    • When you finally log in you find that the Front End, EDGE or Mediation service has not started
    • In the eventviwer you find something about WMI
    • When you start the services everything works fine
    • To resolve this, see this post: https://msunified.net/2010/04/09/after-installing-the-latest-cumulative-updates-to-ocs-2007-r2-some-services-dont-start/
• If you have XP or Vista clients in your enterprise change the default NTLM security settings from 128-bit encryption to “no minimum”
  • Start secpol.msc on a Windows Server 2008 R2 operating system server.
  • Click to select Local Policies and then click Security Options node.
  • Make sure that the following values of the policies are set to “No Minimum.”
    • Network Security: Minimum session security for NTLM SSP based (including secure RPC)
    • Network Security: Minimum session security for NTLM SSP based (including secure RPC) servers
    • Read more about it here: http://technet.microsoft.com/pl-pl/library/dd566199(WS.10).aspx

Part three – Commands to install the necessary prerequisites for OCS 2007 R2 on Windows Server 2008 R2

Front End on Windows Server 2008 R2

• Import-Module ServerManager
• Add-WindowsFeature web-windows-auth,web-mgmt-compat,web-mgmt-console,web-http-logging,msmq-server,msmq-directory,was-process-model,was-config-apis, web-static-content,rsat-adds

Installs the following components:

• [Web-Windows-Auth] – Windows Authentication
• [Web-Mgmt-Compat] – IIS 6 Management Compatibility
• [MSMQ-Server] – Message Queuing Server
• [MSMQ-Directory] – Directory Service Integration
• [RSAT-ADDS] – Active Directory Domain Services Tools
• [WAS-Process-Model] – Process Model
• [WAS-Config-APIs] – Configuration APIs
• [Web-Mgmt-Console] – IIS Management Console
• [Web-Http-Logging] – HTTP Logging
• [Web-Static-Content] – Static Content

NOTE: If you are to run the create pool wizard from the Front End server against SQL 2008, you also need the MS SQL Native Client: X64 Package (sqlncli.msi) – 7963 KB
Also check out this post of mine whether to run create pool on OCS Front End or Back End SQL server: https://msunified.net/2009/08/11/create-pool-%e2%80%93-run-on-ocs-or-sql-server/

Office Communicator Phone Edition deployment on Windows Server 2008

• Import-Module ServerManager
• Add-WindowsFeature Web-Static-Content

Installs the following components in addition to Front End prerequisites:

[Web-Static-Content] – Static Content

NOTE: It exists default MIME types for both the .xml and the .cat extensions that is used by the updater. There is however no default for the .nbt extension and you need to configure it manually. See this post on how to do it http://www.codesalot.com/2010/communicator-phone-edition-update-issues/

Monitoring Server on Windows Server 2008

• Import-Module ServerManager
• Add-WindowsFeature msmq-server,msmq-directory

Installs the following components:

• [MSMQ-Server] – Message Queuing Server
• [MSMQ-Directory] – Directory Service Integration

CWA Server on Windows Server 2008

• Import-Module ServerManager
• Add-WindowsFeature web-windows-auth,web-digest-auth,web-basic-auth,web-mgmt-compat,web-mgmt-console,web-common-http,web-ISAPI-ext,web-ISAPI-filter,web-request-monitor,web-http-redirect,web-http-logging

Installs the following components:

• [Web-Windows-Auth] – Windows Authentication
• [Web-Digest-Auth] – Digest Authentication
• [Web-Basic-Auth] – Basic Authentication
• [Web-Mgmt-Compat] – IIS 6 Management Compatibility
• [Web-Mgmt-Console] – IIS Management Console
• [Web-Common-Http] – Common-http-features
• [Web-ISAPI-Ext] – ISAPI Extensions
• [Web-ISAPI-Filter] – ISAPI Filters
• [Web-Request-Monitor] – Request Monitor
• [Web-Http-Redirect] – HTTP Redirection
• [Web-Http-Logging] – HTTP Logging

Mediation Server on Windows Server 2008

• Import-Module ServerManager
• Add-WindowsFeature rsat-adds

Installs the following components:

• [RSAT-ADDS] – Active Directory Domain Services Tools

References:
For base OS prerequisites: http://support.microsoft.com/kb/982021
For supporting OCS 2007 R2 after raising the domain functional level: http://support.microsoft.com/kb/982020