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How to install Joomla from Microsoft's download site?
Answer
Joomla is a free, open source content management system and application framework that powers many web sites, built using PHP and MySQL. It’s easy to use on Windows, and WebMatrix makes it even easier
Your documents here: http://www.microsoft.com/web/category/all
Getting started with Joomla and WebMatrix:
http://www.microsoft.com/web/post/getting-started-with-joomla-and-webmatrix