When adding MOSS to WSS, you get basically three things: more advanced site templates, more Web Parts, and more features such as global searching, User Profiles, and My Site. Contrary to previous versions of SharePoint, there is no difference in the basic code between a WSS site and a MOSS site; the difference is in the functionality available in that sit. For example, when creating an Internet-facing web site, you need control over its content, as when an author adds content to this site and a manager has to read and approve this content before it goes public. You may also need to keep track of the version history, so you can see how a specific web page looked like before, and possibly revert to that version. All of this, and more, comes with MOSS site templates. This kind of control is usually not necessary when creating web sites for sharing information within a group or project. In fact, it will only be an annoyance, since all group members will have an easy way of updating the information on the team web site; this is what you use WSS site templates for.
In the following table, you can see the most important differences between site templates for WSS and MOSS.
|Functionality||MOSS Site Templates||WSS Site Templates|
|Adding/Modifying Content on Web Page||Full web content management: Whenever the page is opened in Edit mode, the page is automatically checked out.||No web content management: All editing on this page will immediately be available for all user who ...|