This update includes functional, performance, reliability, and security improvements. This update is backward-compatible with Web applications that were created by using earlier versions of Silverlight.
Issues that are fixed by this update
Issue 1You create a Silverlight 3 application that uses the hardware acceleration feature of the graphics processing unit (GPU). If errors occur in the GPU drivers when you run the Silverlight 3 application, the Silverlight 3 application cannot correctly display the content. This problem occurs because Silverlight 3 incorrectly handles errors that occur in the GPU drivers.
Issue 2CPU usage is high when you use the Deep Zoom feature in Silverlight 3. This problem occurs when the Deep Zoom feature cannot load or decode a tile. The problem persists even if you minimize the Web browser in which the Silverlight 3 application is running.
Issue 3When you try to download information in a Silverlight application, the application crashes.
Installation informationThis update is available from the following sources.
Microsoft Silverlight siteThe Silverlight installer includes all previous updates in addition to this update. To install the latest version of Silverlight, visit the following Microsoft Web site:
Microsoft UpdateThis 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 979202)."
WSUSThis update is also available on Microsoft Update through Microsoft Windows Server Update Services (WSUS).
If a computer has an earlier version of Microsoft Silverlight installed, this update will be offered as "Update for Microsoft Silverlight (KB 979202)."
If a computer does not have Silverlight installed, this update will be offered by the latest Silverlight installer as "Update for Microsoft Silverlight (KB 979202)."
Silverlight 3 contains an auto-updating mechanism. By default, this mechanism is turned off in the WSUS package. Future updates will be provided through WSUS updates.
If you would like to see answers to related issues, click the following links to view topics in the Microsoft Community forum:
- KB979202 error code message
- Having error installing the most recent Silverlight update (KB979202)
- Error code 643 on update failure (Microsoft Silverlight KB979202)
Article ID: 979202 - Last Review: Mar 29, 2017 - Revision: 3