How to Install Office Web Apps  for SharePoint 2010.

Office Web Apps are the online companions to Microsoft Word, Microsoft Excel, Microsoft PowerPoint, and Microsoft OneNote applications. Office Web Apps enable users to access documents from anywhere by using a Web browser. Users can view, share, and work on documents with other users online across personal computers and mobile devices.

Office Web Apps requires a supported device, an Internet connection, and a supported browser. Some mobile functionality requires Office Mobile 2010, which is not included in Office 2010 applications, suites, or Office Web Apps. There are some differences among the features of Office Web Apps, Office Mobile 2010, and the Office 2010 applications.

Install Office web apps for SharePoint 2010.

1.   Run Office Web Apps Setup

Note:
You must install Office Web Apps by running WCSetup.exe on every server that will host Office Web Apps in the server farm.

From the root folder, run WCsetup.exe and On the Enter your Product Key page, enter your product key, and then click Continue.

2. On the Choose a file location page, click Install Now to install to the default location. To install to a different location, specify the location that you want to install to, and then click Install Now

3.  When Setup finishes, a dialog box prompts you to complete the configuration of your server. Be sure that the Run the SharePoint Products and Technologies Configuration Wizard now check box is selected.

Note: If you have web front end more one server. You must install office web app all server farm SharePoint and run SharePoint Products and Technologies Configuration Wizard all Server.

Click Close to start the configuration wizard.

4. You can create service word , excel ,powerpoint 2 way :

4.1 Use GUI Central administration

4.2 Use PowerShell SharePoint 2010

Central Administration : Go to Central Administration > Application Management > Manage service application.

PowerShell SharePoint 2010 :

4.2.1 Open your notepad and copy this code and save file name Create-SrvApps.ps1

$appPool = Get-SPServiceApplicationPool -Identity “SharePoint Web Services Default”
New-SPWordViewingServiceApplication -Name “WdView” -ApplicationPool $appPool | New-SPWordViewingServiceApplicationProxy -Name “WdProxy”
New-SPPowerPointServiceApplication -Name “PPT” -ApplicationPool $appPool | New-SPPowerPointServiceApplicationProxy -Name “PPTProxy” -AddToDefaultGroup
New-SPExcelServiceApplication -Name “Excel” -ApplicationPool $appPool

If you have  Excel service existing on service applications and  application proxies use this code.

$appPool = Get-SPServiceApplicationPool -Identity “SharePoint Web Services Default”
New-SPWordViewingServiceApplication -Name “WdView” -ApplicationPool $appPool | New-SPWordViewingServiceApplicationProxy -Name “WdProxy”
New-SPPowerPointServiceApplication -Name “PPT” -ApplicationPool $appPool | New-SPPowerPointServiceApplicationProxy -Name “PPTProxy” -AddToDefaultGroup

4.2.2 Run as powershell SharePoint 2010 administrator and type the following command:

./Create-SrvApps.ps1

4.2.3 Done and you can see service  Word Viewing Service , “PowerPoint Service , Excel Calculation Servicesin Manage service application.

Three service must started .

5.  On Icon new > New Service Word Automation services,Excel  services and PowerPoint services and Add to default proxy list.

Done for install service in central administration.

6. Go to site collection .

Sign in admin site collection > Site action > Site Setting

On the Site Settings page, in Site Collection Administration, click Site collection features > Find  Office Web Apps > click Activate.

7. You test upload document such as .docx to document library SharePoint and Click on link file document .

Document it open your web browser .