A service application provides a resource that can be shared across sites throughout a farm, and can be accessed by users through a hosting web application. Service applications are associated to web applications by service application connections. Some services can be shared across farms.
When working with SharePoint 2010 Service Applications, you must create a lot of "plumbing" code. There is a service, a service instance, a service proxy, a service application, and a service ...
if we try to view word,ppt and excel via browser ..cannnot view, throw error Word Error alert Microsoft Word Web AppWord Web App cannot open this document for viewing because of an unexpected error....