There is the Flex Module for Apache and IIS on Adobe Labs that may do the trick ..
http://labs.adobe.com/wiki/index.php/Flex_Module_for_Apache_and_IIS [quote] The Flex module for Apache and Microsoft IIS provides web-tier compilation of MXML and ActionScript files on Apache and IIS web servers. This module lets you rapidly compile, test and deploy an application by simply requesting the main application file from a web browser, similar to working with server-side scripting languages such as PHP, ColdFusion or JSP. [/quote]
