One thing I like WebMatrix is you can install PHP Web applications, such as WordPress, Drupal, Umbraco, and Joomla etc, within Window system. No longer need to install another Linux base personal web server to do site testing.

Microsoft WebMatrix

WebMatrix is a free Web development tool that installs in minutes and elegantly brings together a Web server, a database, and programming frameworks into a single, integrated experience. WebMatrix lets you code, test, and deploy both ASP.NET and PHP applications side by side.

WebMatrix integrates a rich code editor, a database editor, Web server management, Search Engine Optimization, FTP publishing, and more, WebMatrix provides a fresh, new, Web site development experience that bridges all the key components you need to create, run, and deploy a Web site.

Click here to read more and download Microsoft WebMatrix.