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FIX: A System.InvalidCastException exception occurs when you run a .NET Framework 3.5-based Windows Presentation Foundation (WPF) applicationArticle ID: 974477 - View products that this article applies to. On This PageSYMPTOMSWhen you run a Microsoft .NET Framework 3.5-based Windows
Presentation Foundation (WPF) application, a System.InvalidCastException
exception occurs.
Then, the
application crashes. When you debug the application,
you
receive the following error message: Unable to cast object
of type 'System.Windows.Media.SolidColorBrush' to type
'System.Windows.DeferredReference'
CAUSEThis
problem occurs because an entry table incorrectly indicates a created brush
object as not created. Therefore, when a function tries to cast the brush object
to a DeferredReference object, you receive the error message that is mentioned
in the "Symptoms" section. RESOLUTIONHotfix informationA supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that this article describes. Apply it only to systems that are experiencing this specific problem.To resolve this problem, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft Web site: http://support.microsoft.com/contactus/?ws=support Note In special cases, charges that are ordinarily incurred for
support calls may be canceled if a Microsoft Support Professional determines
that a specific update will resolve your problem. The usual support costs will
apply to additional support questions and issues that do not qualify for the
specific update in question.
(http://support.microsoft.com/contactus/?ws=support)
PrerequisitesYou must have the .NET Framework 3.5 Service Pack 1 installed to apply this hotfix.Restart requirementYou do not have to restart the computer after you apply this hotfix.Hotfix replacement informationThis hotfix does not replace any other hotfixes.File informationThe global version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.For all supported x86-based versions of Windows Server 2000, of Windows Server 2003, and of Windows XPCollapse this table
For all supported x64-based versions of Windows Server 2000, of Windows Server 2003, and of Windows XPCollapse this table
For all supported x86-based versions of Windows Vista Service Pack 2 (SP2) and of Windows Server 2008 SP2Collapse this table
For all supported x64-based versions of Windows Vista SP2 and of Windows Server 2008Collapse this table
For all supported x86-based versions of Windows 7Collapse this table
For all supported x64-based versions of Windows 7Collapse this table
STATUSMicrosoft
has confirmed that this is a problem in the Microsoft products that are listed
in the "Applies to" section. MORE INFORMATIONFor more information about
software update terminology, click the following article number to view the
article in the Microsoft Knowledge Base: 824684
(http://support.microsoft.com/kb/824684/
)
Description of the standard terminology that is used to describe Microsoft software updatesPropertiesArticle ID: 974477 - Last Review: October 7, 2011 - Revision: 4.0
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