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Office Web Apps Server Preview is an Office server product that provides browser-based file viewing and editing functionality for Office files. Office Web Apps Server Preview works with products and services that support WOPI, the Web app Open Platform Interface protocol. These products, known as hosts, include SharePoint 2013 Preview, Lync Server 2013 Preview, and Exchange Server 2013 Preview. Here are some of the features that Office Web Apps Server Preview enables for these products:

1. SharePoint 2013 Preview Users can access Office files from SharePoint document libraries by using Word Web App Preview, Excel Web App Preview, PowerPoint Web App Preview, and OneNote Web App Preview. There are many new features and capabilities in Office Web Apps Preview, such as new support for co-authoring in Word Web App Preview and PowerPoint Web App Preview.
2. Lync Server 2013 Preview Users can broadcast PowerPoint presentations by using Lync 2013 Preview and Lync Web App. Broadcasting is enhanced to support higher-resolution displays and a wider range of mobile devices than in earlier versions. Users who have the appropriate privileges can scroll through a PowerPoint presentation independent of the presentation itself.
3. Exchange Server 2013 Preview Users of Outlook Web App can preview Office file attachments by using Word Web App Preview, Excel Web App Preview, and PowerPoint Web App Preview. These previews provide rich, full-fidelity viewing of Office files and any comments within them, without the need to download the files before viewing them.

Files

Status: Deleted This download is no longer available on microsoft.com. The downloads below are archives provided by the Internet Archive Wayback Machine from the Microsoft Download Center prior to December 2012.

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Supported operating systems: Windows 7, Windows 8 Release Preview, Windows Server 2008 R2, Windows Server 2012 Release Candidate

Hardware:
Office Web Apps Server Preview uses the same minimum hardware requirements as SharePoint 2013 Preview. You can find the full set of SharePoint 2013 Preview requirements in Hardware requirements—web servers, application servers, and single server installations.

Software:
You can run Office Web Apps Server Preview on the following operating systems:
• Windows Server 2008 R2 with Service Pack 1 and all required updates
• Windows Server 2012


Supported browsers:
Browser support for Office Web Apps Server Preview is the same as for SharePoint 2013 Preview. Refer to the article Plan browser support (SharePoint 2013 Preview) for more information.


Language support:
Language packs for Office Web Apps Server Preview are available for English, Japanese, and Spanish. You must install the language packs on each server in the Office Web Apps farm.
You must also install the appropriate language packs on the hosts (SharePoint 2013 Preview, Lync Server 2013 Preview, or Exchange Server 2013 Preview).

Click Download above and save the file locally. For detailed requirements and planning guidelines, see Plan Office Web Apps Server Preview. For deployment instructions, see Deploy Office Web Apps Server Preview.
To install the language packs for Office Web Apps Server Preview, perform the following procedure on each server in the Office Web Apps Server farm:
1. Install the language pack
2. At an elevated command prompt, type:
net stop wacsm
3. Then type:
net start wacsm