Silverlight 4.0.50524

Microsoft Silverlight is a programmable web browser plugin that enables features such as animation, vector graphics and audio-video playback so you can experience rich Internet applications.

Silverlight offers a flexible programming model that supports AJAX, VB, C#, Python, and Ruby, and integrates with existing Web applications.

It supports fast, cost-effective delivery of high-quality video to all major browsers running on the Mac OS or Windows.

# Enhancements
All updates to Microsoft Silverlight include functional, performance, reliability and security improvements and are backward compatible with web applications built using previous versions of Silverlight.
- Fixes issues when using PlayReady® on certain Mac and Windows configurations.
- Fixes an issue where an AmbiguousMatchException exception occurs running on certains Silverlight 3.0 applications.
- Fixes memory leak issues on Mac which occur playing streaming media for long periods of time.
- Fixes an issue on Mac where the TAB key does not start the Control.KeyDown event as expected.
- Fixes an issue on Mac when you set the full-screen mode for a Silverlight application that is running on a secondary monitor, the screen is positioned incorrectly.