User guide

9
Extensibility
Expression Web includes a new Software Development Kit
(SDK) that you can use to extend the capabilities of Expression
Web.
New for version 4, Expression Web introduces a JavaScript
Application Programming Interface (API) and a JavaScript
bridge to the managed code API. Developing extensions in
JavaScript and HTML is familiar to web developers, which makes
it easier than developing extensions in managed or native code.
In addition to using the JavaScript files that provide the logic
for an add-in, you can construct panels, dialog boxes, and oth-
er display elements for your add-in using HTML and CSS. And
because you’re using web technology, you can use Expression
Web as your development environment.
For more information about extensibility in Expression Web,
see “Getting started” in the Expression Web SDK User Guide.