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Description
A Hotfix is a product update package with one or more updated product files that fix a specific product problem.

IMPORTANT NOTE

Please be aware this Hotfix has not gone through full Microsoft product regression testing nor has it been tested in combination with other Hotfixes.

Please carefully review the associated Hotfix KB article to verify the fix is the one needed and there are no known compatibility or installation issues. You may also want to contact a Microsoft Support Professional at http://support.microsoft.com

Issue Description

Rollup Hotfix for several issues in WPF designer in Visual Studio 2008 SP1

SYMPTOMS
Consider the following scenario: • An application is built by using the Microsoft .NET Framework 2.0.
• The application runs in the Microsoft .NET Framework 2.0.
• The application runs under a user account context.
• No user profile is associated with the user account context.
In this scenario, the application may crash, or you may receive an access violation error message. If you debug the crash, you find an access violation in the mscorwks!SecurityConfig::GetCacheEntry function.

If you experience this problem in a Microsoft ASP.NET application, you receive error messages in the event log that are similar to the following:

Error message 1

Event ID : 1023
Raw Event ID : 1023
Record Nr. : 14
Category : None
Source : .NET Runtime
Message : NET Runtime version 2.0.50727.42 - Fatal Execution Engine Error (7A05E2B3) (80131506)

Error message 2

Event ID : 1000
Raw Event ID : 1000
Record Nr. : 15
Category : None
Source : .NET Runtime 2.0
Error Reporting Type : Error
Message : Faulting application w3wp.exe, version 6.0.3790.1830, stamp 42435be1, faulting module mscorwks.dll, version 2.0.50727.42, stamp 4333e7ec, debug? 0, fault address 0x000e9f96.

Notes

• Error message 2 immediately follows error message 1.
• This problem occurs with ASP.NET 2.0 applications. This problem may occur with other types of applications that run under non-interactive accounts, such as Windows services.
Additionally, in Microsoft Windows SharePoint Services 3.0 or in Microsoft Office SharePoint Server 2007, you may be prompted for authentication when you connect to the Site Usage Report page of a Web site to view the usage data for that Web site. Then, you may recieve the following error message:
The request failed with HTTP status 401: Access Denied
The following event is logged in the event log:
Event ID : 1023
Raw Event ID : 1023
Record Nr. : 14
Category : None
Source : .NET Runtime
Message : NET Runtime version 2.0.50727.42 - Fatal Execution Engine Error (7A05E2B3) (80131506)


CAUSE

This problem occurs when a null reference is in the user policy cache.

Additional Information about the issue resolved by this Hotfix can be found in its Knowledge Base article at http://support.microsoft.com/kb/958017

Additional Hotfixes
Search the list of all other publicly available Visual Studio and .NET Framework Hotfixes at http://archive.msdn.microsoft.com/Project/ProjectDirectory.aspx?TagName=Hotfix&ProjectSearchText=Hotfix*

Last edited Oct 31 2008 at 1:07 AM  by DDHotfix, version 3
Comments
MarkWT wrote  Nov 10 2008 at 9:54 PM  
Please be aware that if you already have the latest version of the Silverlight Tools for Visual Studio 2008 SP1, you DO NOT need and should not install this hotfix. All of the fixes in the Hotfix package are already included in the Silverlight Tools for Visual Studio 2008 SP1.

Thanks
Mark Wilson-Thomas
Program Manager, WPF+Silverlight Designer Team, Visual Studio

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