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Description of the update for Microsoft Silverlight: September 28, 2010
Article ID: 2416427 - View products that this article applies to.
Microsoft Silverlight is a cross-browser, multi-environment plug-in that delivers the next generation of Microsoft .NET–based media experiences and rich interactive applications for the web.
This article describes an update (version 4.0.50917.0) that fixes an incompatibility issue between Silverlight 4 general distribution release (GDR) 1 (version 4.0.50826.0) and earlier versions of the Bing Toolbar. The current release of Bing Toolbar (version 6) is not affected. This update is released on September 28, 2010.
This update is included in current Silverlight installers. If your computer does not have Microsoft Silverlight installed, this update will be offered by Microsoft Update or by Windows Server Update Services (WSUS). To install this update, obtain it from one of the following sources:
Microsoft Silverlight site
The Silverlight installer includes all previous updates in addition to this update. To install the latest version of Silverlight, visit the following Microsoft website: Microsoft Update
This update is also available to users of Microsoft Update. If you have an earlier version of Silverlight installed, this update will be offered as “Update for Microsoft Silverlight (KB 2416427).”
Note This update will be detected by Microsoft Update Agent if "Update for Microsoft Silverlight (KB 2416427)" is suitable for your computer. If you want to download it manually, visit ""
This update is also available on Microsoft Update through WSUS. If a computer has an earlier version of Microsoft Silverlight installed, this update will be offered as "Update for Microsoft Silverlight (KB 2416427)."
If a computer does not have Microsoft Silverlight installed, this update will be offered by the latest Microsoft Silverlight installer as "Update for Microsoft Silverlight (KB 2416427)."
For more information about Silverlight, visit the following Microsoft websites:
Silverlight developer resources