Microsoft Expression Web 4 is the newest Web editing and management application from Microsoft. It is a professional design tool used to create modern, standards-based sites that deliver superior quality on the Web.
From the perspective of a designer or developer, the modern Web bears only a slight resemblance to the Web of even as little as five years ago. Expression Web 4 is an effort by Microsoft to provide a tool that helps designers attain modern Web design standards and practices.
Expression Web 4
includes features that help ensure your output adheres to World Wide Web Consortium (W3C) validity standards, and that help you to cleanly separate content from presentation by taking advantage of the functionality and capabilities of cascading style sheets (CSS).
As you drill deeper into Expression Web 4, you will find tools to make working with Microsoft ASP.NET much more comfortable than ever before, such as the ASP.NET Development Server that installs with Expression Web and the ASP.NET Controls group in the Toolbox panel.
In addition Expression Web helps you to easily use some of the features that ASP.NET offers, specifically, ASP.NET Master Pages, Navigation Controls, and Data Controls. It’s refreshing that tools with this type of power are available in a user-friendly designer-centric application like Expression Web 4 as opposed to being limited to programmer-oriented tools such as Microsoft Visual Web Developer or Microsoft Visual Studio.