Almost all software applications in the world are developed with at least one purpose in mind, "Saving Time". May it be a windows application, a java applet, a shell script, a macro, tiny applications hosted in a sidebar gadget, a search engine, an e-commerce application, a tic tac toe game (yes! try playing it on a paper), all the projects, products, API's, solutions, services, everything which has been developed, at the least, save time. Think about it, a software which saves more time is a better software.

The idea of "Saving Time" may also be one of the guiding principles behind the latest approach in Windows Vista™, called Preview Handlers. Preview handlers enable the user to interact with files more efficiently, by giving a read only preview in the Windows Vista preview pane. Windows Vista also allows developers to extend this functionality of previews by writing managed code (add-ins) for custom files...