Article ID: 980251 - View products that this article applies to.
You have a Windows Presentation Foundation (WPF) application that uses the Microsoft .NET Framework 3.5 Service Pack 1 (SP1). This application uses the ResourceDictionary class and the MergedDictionaries property to manage resources. When the application removes a resource dictionary for an element, the reference for the element is not removed from the resource dictionary. This results in a memory leak. When you run the application for a long time, memory usage on the computer may increase significantly.
To resolve this issue, apply the hotfix package that is described in the following Microsoft Knowledge Base article:
(http://support.microsoft.com/kb/2667241 / )An update rollup is available for Windows Presentation Foundation (WPF) for Microsoft .NET Framework 3.5
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.