| 2D Vector Animation/Graphics |  | |
| AJAX Support | | |
| Cross-Browser (Firefox, IE, Safari) | | |
| Cross-Platform (Windows, Mac) | | |
| Framework Languages
(Visual Basic, Visual C#, IronRuby, Ironpython) | - | |
| HTML DOM Integration | | |
| HTTP Networking | | |
| Isolated Storage | - | |
| JavaScript Support | | |
| JSON, REST, SOAP/WS-*, POX, and RSS Web Services (as well as support for Sockets) | - | |
| ADO.NET Data Services | - | |
| Cross Domain Network Access | - | |
| LINQ to Objects | - | |
| Canvas Layout Support | | |
| StackPanel, Grid and Panel Layout Support | - | |
| Managed Control Framework | - | |
| Full suite of Controls (TextBox, RadioButton, Slider, Calendar, DatePicker, DataGrid, ListBox, TabControl, and others) | - | |
| Deep Zoom Technology | - | |
| Managed HTML Bridge | - | |
| Managed Exception Handling | - | |
| Media – Content Protection | - | |
| Media – 720P High Definition (HD) Video | | |
| Media – Audio/Video Support (VC-1, WMV,
WMA, MP3) | | |
| Media – Image Support (JPG, PNG) | | |
| Media Markers | | |
| Rich Core Framework (e.g. Generics,
collections) | - | |
| Security Enforcement | - | |
| Silverlight ASP.NET Controls
(asp:media, asp:xaml) | | |
| Type Safety Verification | - | |
| Windows Media Server Support | | |
| XAML Parser (based on WPF) | | |
| XMLReader/Writer | - | |