Introduction Web desktops are a big Hype on the web 2.0 world. Using a familiar interface on the web means the final independence from a particular PC and Operating system. On the other side most of those systems are proprietary and not available for download. As far I know an example of web desktop is available for download and is eyeOS (1). eyeOS is a complete system that while is based on PHP use proprietary extensions and no database for the backend. Extjs is a powerfull UI framework, based on javascript that let free the developer to choice the backend. Based on this framework a desktop project (2) has been started. This offer a login but not the possibility to manage the application. the project I decided to use a Model Driven Development approach to create a better backend code (php) that can administrate the web desktop. I'm using wCMF (4) a MDD framework based on Open Arch itec ture Ware (5). The version 2.6 of the Wcmf framework supports extjs 2.1. You...