The Silverlight plug-in is an extremely lightweight segment that is fundamental for clients to get to Silverlight applications. The plugin allows easy download and installation within only a couple of minutes and does not occupy much hard drive room. The Silverlight plug-in is chiefly in charge of getting the Silverlight object in the Web page, downloading and getting it to the XAP bundle, setting up the program condition, and starting the execution of the application. At a point when a Web page containing a Silverlight application is shown, the client ought to be given a connection to download the module from Microsoft if the plug - in has not already been installed.