Article ID: 974286 - Last Review: April 10, 2012 - Revision: 5.0

FIX: A WPF application that is based on the .NET Framework 3.5 SP1 crashes and a System.ExecutionEngineException exception is thrown when you select and drag text in a text box control that is in the application

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SYMPTOMS

You run a Windows Presentation Foundation (WPF) application that is based on the Microsoft .NET Framework 3.5 Service Pack 1 (SP1). When you select and drag text in a text box control that is in the application, the application crashes. Additionally, you receive an error message that resembles the following:

<Application Name> has stopped working.

When you debug the application, you notice that a System.ExecutionEngineException exception is thrown.

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CAUSE

This problem occurs because of a bug in the text box control that is in the WPF application.

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RESOLUTION

To resolve this issue, apply the hotfix package that is described in the following Microsoft Knowledge Base article:

2667241 (http://support.microsoft.com/kb/2667241 / ) An update rollup is available for Windows Presentation Foundation (WPF) for Microsoft .NET Framework 3.5

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