Unlike other Microsoft technology, Silverlight has a free license. It can be used in any platform, browser or any device. The supported platforms are Microsoft Windows 7, Vista, Microsoft Server 2008 R2, Windows server 2008, Windows XP, and Mac OS X. Also, platforms like windows phone and Symbian mobiles can also run Microsoft Silverlight. Although this technology is not used in Linux, an open source software Moonlight, developed by the joint venture of Novell and Microsoft, is used to bring Silverlight version 1 and 2 to incorporate with some platforms of Linux, FreeBSD and some other open source platforms.