There are a few significant differences in installing Office Web Apps with SharePoint Server 2013:
- You can no longer install Office Web Apps on the same server as SharePoint. Instead, you have to install Office Web Apps on a COMPLETELY different server from the SharePoint Server. In addition, Office Web Apps is not part of its own farm separate from the SharePoint Farm.
- In addition to not being able to install SharePoint on the Office Web Apps Server, you also cannot install the following: Exchange, Lync, SQL Server or any Desktop version of the Office suite.
- You ABSOLUTELY need to keep these ports open: 80, 443 or 809.
- It can only be installed on Windows Server 2008 R2 or Windows Server 2012.
- Office Web Apps 2013 REQUIRES Claims-based Authentication in order to operate. If you are still using Classic mode Authentication, you will have to switch it over to Claims-based Authentication before you can begin using Office Web Apps 2013.
- Office Web Apps 2013 supports a wider variety of browsers on both PCs & Macs for Editing and Viewing (IE, Firefox, Chrome & Safari) as well as Tables & Saltes. Viewing is also supported on a variety of Smart Phones and it is optimized for touch screens.
- In order to create a new Office Web Apps Farm, you will have to run a PowerShell command such as the following:
New-OfficeWebAppsFarm -InternalUrl http://owa.spfarm.com -AllowHttp –EditingEnabled
- Once you have run the PowerShell command, you can verify that your Office Web Apps Farm has been successfully created by navigating a to a Url similar to the following: http://owa.spfarm.com/hosting/discovery
- Unfortunately, once you have created your Office Web Apps Farm, you have to manually configure your SharePoint Farm to communicate with the Office Web Apps Farm through using a series of PowerShell commands.