This article will focus on the concepts of the two main page
types that can be found in SharePoint 2007 (WSS): Application pages and Site
pages. Since this is a WSS level objective, as opposed to MOSS, you will not
need MOSS to review the information provided. Windows Server 2003, WSS and
Visual Studio 2005 are all that is needed, with no additional add-ons.
There are two primary types of pages found in a WSS
application, Application pages and Site pages. The first type, Application
Pages, is generally aspx pages that you will find used across multiple Sites.
They are usually the "behind the scenes" administrative type pages.
Secondly, Site Pages, are the pages that are used inside an individual site.
These are mainly the user level pages that make up the site, for example, the
index page. When you enter a site as a user you will probably be viewing Site
Pages (like Default.Aspx). In the same way, when you use the administrative
pages of a site (like Settings.Aspx), you will likely be working with
Application Pages.