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Article ID: 957938 - Last Review: July 26, 2012 - Revision: 3.0

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A major update is available for Microsoft Silverlight. This major update includes improvements in performance, in security, and in functionality. This update is backward compatible with Silverlight 1.0 Web applications.

Installation information

This update is available from the following sources.

The Microsoft Silverlight Web site

The Silverlight installer includes all previous updates in addition to this update. To install the latest version of Silverlight 2, visit the following Microsoft Web site: (

Microsoft Update

This update is also available to users of Microsoft Update and Windows operating systems. If you have an earlier version of Silverlight installed, you will be offered the following update automatically:
Update for Microsoft Silverlight (KB 957938)
Silverlight 2 contains an auto-updating mechanism. By default, this mechanism is disabled in the Windows Server Update Services (WSUS) package.

To check for updates, visit the following Microsoft Web site: (

Applies to
  • Microsoft Silverlight for Windows
  • Microsoft Silverlight for Macintosh
kbqfe kbhowto kbinfo kbexpertiseadvanced KB957938
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