Lync 2013 Office Web Apps Server Install

 
Lync Server 2013 Web Apps Server (WAC) is a new role for Lync 2013 deployment and it's required if you want to share PowerPoint presentations.

**Note**
If you don't go through with setting up the WAC, and leave it enabled in the Topology Builder, you'll get Event Errors that the Web Apps is missing (a nuisance, but your deployment isn't broken).

**Note**
The Office Web Apps Server has to be it's own standalone server, it cannot  be collocated with any other service.  

For Server 2012, install the pre-reqs:

Add-WindowsFeature Web-Server,Web-Mgmt-Tools,Web-Mgmt-Console,Web-WebServer,Web-Common-Http,Web-Default-Doc,Web-Static-Content,Web-Performance,Web-Stat-Compression,Web-Dyn-Compression,Web-Security,Web-Filtering,Web-Windows-Auth,Web-App-Dev,Web-Net-Ext45,Web-Asp-Net45,Web-ISAPI-Ext,Web-ISAPI-Filter,Web-Includes,InkandHandwritingServices
 
Restart if prompted.
 
Install the Microsoft Office Web Apps Server:

Download the WAC and run setup.exe in the img file.
 
Create a certificate:

As with most Lync services, you'll need to assign a cert.
Launch the IIS Manager > Server Certificates
In the Server Certificates window, click on Create Domain Certificate in the Action pane.
In the Create Certificate window, fill in your Org details. The Common Name must be Server.Domain.Local.
Next, choose your CA, and give your certificate a friendly name, like Lync WAC Cert
Click Finish, and you’ll have a new cert.

Configure the WAC Server:

In PowerShell, run:

New-OfficeWebAppsFarm -InternalURL “https://exchangeitup.domain.local” –CertificateName “Lync WAC Cert”

In -InternalURL, enter the Common Name on your cert and in -CertificateName, enter the friendly name you assigned.

To check your cert, go to https://exchangeitup.domain.local/hosting/discovery, you should get an XML page with no errors.

Add the WAC Server to Lync Topology:

Open the Topology Builder, expand Shared Components, right-click Office Web Apps Servers, and choose New Office Web Apps Server

Next, type your server’s FQDN; the discovery address will populate automatically.

Click OK.

Associate your Front-End pool(s) with your Office Web Apps Server and publish the topology.

Add Access URL:

New-OfficeWebAppsFarm -InternalURL “https://exchangeitup.domain.local” –CertificateName “Lync WAC cert”

For external access, change InternalURL  to -ExternalURL “<WAC server external FQDN>”.

New-OfficeWebAppsFarm -ExternalURL “https://exchangeitup.domain.local” –CertificateName “Lync WAC cert”

You're done, test out PowerPoint sharing!