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Install Lync 2010

Lync 2010 is Microsoft’s real-time instant messaging and telephony platform. It supports both software and hardware based (known as Lync Phone Edition) clients, and uses SIP on the backend.

System requirements for Lync

To be determined? Unlike Exchange, Microsoft has basically wiped themselves clean of Lync, and a lot of its online documentation never got archived.

Installation Instructions

To automatically install all built-in Windows prerequisites on 2008 R2 (skipping step 2 and some time later), you can use this PowerShell snippet:

Import-Module ServerManager
Add-WindowsFeature NET-Framework,RSAT-ADDS,Telnet-Client,Web-Server,Web-Static-Content,Web-Default-Doc,Web-Http-Errors,Web-Http-Redirect,Web-Asp-Net,Web-Net-Ext,Web-ISAPI-Ext,Web-ISAPI-Filter,Web-Http-Logging,Web-Log-Libraries,Web-Http-Tracing,Web-Windows-Auth,Web-Client-Auth,Web-Filtering,Web-Stat-Compression,Web-Mgmt-Console,Web-Scripting-Tools -Restart

1. Install AD CS onto your domain controller
2. Install .NET Framework 3.5
   • For 2008 R2, you can just enable the feature in Server Manager
   • For 2008, the offline installer is still available from Microsoft Download or Legacy Update
3. Insert the Lync Server 2010 installation media and run the installer
4. Click Yes when prompted to install the Visual C++ Redistributables
5. Click Install to accept the default installation folder
6. Read and accept the license agreement
7. On the right side, click Install Topology Builder
8. Click Prepare Active Directory
9. Click Run under Prepare Schema
10. Click Run under Prepare Current Forest, make sure to select Local domain
11. Click Run under Prepare Current Domain
12. Add the account you want to administer Lync with to the CSAdministrator and RTCUniversalServerAdmins groups, then log out and back in if currently logged into that account
13. Reopen the installer, and on the right side, click Prepare first Standard Edition server
14. Create a share called LyncShare
    • Make a folder somewhere on your drive titled lyncshare (for example C:\Program Files\Microsoft Lync Server 2010\LyncShare)
    • Allow Read & Execute permissions for Everyone, and make sure Administrators have Full Control
    • Enable file sharing on the folder, name it lyncshare, and give the account you’re installing Lync on Full Control
15. Launch the Lync Server Topology Builder
16. Select New Topology and select a location to save the topology file to
17. Set the primary SIP domain to whatever your Active Directory domain is
18. Skip adding additional domains (the option seems to be grayed out anyways)
19. Set your site’s name (other site details are optional)
20. Finish the topology wizard and open the New Front End Wizard
21. Set the Pool FQDN to the server you’re installing Lync Server on, then select Standard Edition Server
22. Select features as desired, keep Collocated Mediation Server on, leave the server roles off
23. Point the file share to the share you made earlier
24. Skip adding extra SIP gateways
25. On the right, click Edit Properties, modify Administrative access URL to your liking, and choose the Front End server to install Central Management Server to
26. On the right, click Publish Topography
27. Modify your DNS records as the to-do list states
28. Go back to the Deployment Wizard and click Install or Update Lync Server System
29. Click Run under Install Local Configuration Store and keep the default option to retrieve the config automatically
30. Click Run under Setup or Remove Lync Server Components.
    If WMF fails to install, run dism.exe /online /add-package /packagepath:%windir%\servicing\Packages\Microsoft-Windows-Media-Format-Package~31bf3856ad364e35~amd64~~6.1.7601.17514.mum /ignorecheck and reboot the server before trying again
31. Click Run under Request, Install or Assign Certificates, then request a certificate from AD CS. Give the certificate a name like Lync Certificate, fill out the detail fields, and check your SIP domain to be included. Assign the certificate to the Lync server
32. Click Run under Start Services and hope it works

Once installed, there are some additional tasks to do.

1. To get automatic client configuration working, configure an SRV record for _sipinternaltls and _tcp on port 5061 for the Lync server
2. Upon updating the server, conferencing will most likely break. Apply the following registry key, then run iisreset /restart:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL]
SendTrustedIssuerList=dword:0