not run by default. A reinstallation of the .NET Framework 3.5 SP1 will install the plugin and add support for XBAP applications on Firefox. Alternatively, hard-copying the plugin DLLs from a working Windows XP/Vista installation to the plugin directory of Mozilla Firefox will also reinstate support for XBAP applications. The WPF plugin DLLs reside in the following directories (depending on the Framework version): 3.5 [SP1] C:\Windows\Microsoft.NET\Framework\v3.5\WPF\NPWPF.dll 4.0 C:\Windows\Microsoft.NET\Framework\WPF\NPWPF.dll Microsoft Silverlight Silverlight (codenamed WPF/E) is a deprecated cross-browser browser plugin which contained WPF-based technology (including XAML) that provided features such as video, vector graphics, and animations to multiple operating systems including Windows 7, Windows Vista, Windows XP, and Mac OS X. Microsoft sanctioned a limited number of third-party developers to work on ports for certain Linux distributions. Specifically, it was provided as an add-on for Mozilla Firefox, Internet Explorer 6 and above, Google Chrome 42 and below and Apple Safari. .NET Micro Framework The .NET Micro Framework includes a GUI object model loosely based on WPF, although without support for XAML. References Bibliography Adam Nathan: Windows Presentation Foundation Unleashed (WPF), December 21, 2006, Sams Publishing, Chris Anderson: Essential Windows Presentation Foundation (WPF), April 11, 2007, Addison-Wesley, Chris Sells, Ian Griffiths: Programming WPF, August 28, 2007, O'Reilly Media, Arlen Feldman, Maxx Daymon: WPF in Action with Visual Studio 2008, November 21, 2008, Manning Publications, External links MSDN Library: Windows Presentation Foundation Rich typography with Windows Presentation Foundation Windows Presentation Foundation User Education .NET terminology Formerly proprietary software Free and open-source software Presentation Foundation Microsoft free software Microsoft Windows multimedia technology Software using the MIT license Widget toolkits 2006 software Windows-only free software