mod-xslt2 is a server side module able to transform ``xml'' documents in ``html'' (or to any other format) before they even get back to the browser. mod-xslt2 main features include: * Ability to parse generated xml (ability to parse the output of php or perl scripts). * Ability to use the ``xslt'' indicated by the <?xml-stylesheet processing instruction. * Ability to send back the xml file unparsed to the browser. * Ability to fetch xslt or DTDs from scripts rather than from static files. * Ability to fetch a different xslt depending on the content of the request headers, of the get parameters or the web server environment. * Ability to allow xslt stylesheets to make use of these variables to generate output.