Microsoft Silverlight is an application framework for writing and running rich Internet applications, similar to Adobe Flash. A plugin for Silverlight is available for some browsers. While early versions of Silverlight focused on streaming media, current versions support multimedia, graphics, and animation and give developers support for CLI languages and development tools. Silverlight is also one of the two application development platforms for Windows Phone, but web pages that use Silverlight cannot run on the Windows Phone or Windows Mobile versions of Internet Explorer, as there is no Silverlight plugin for Internet Explorer on those platforms.