Microsoft KB Archive/941132

= FIX: You receive a NullReferenceException exception when you run a .NET Framework 2.0-based application that uses the ShowDialog method, and the method specifies an IWin32Window owner =

Article ID: 941132

Article Last Modified on 11/16/2007

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APPLIES TO


 * Microsoft .NET Framework 2.0 IA64 Edition
 * Microsoft .NET Framework 2.0 x64 Edition

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SYMPTOMS
You have a Microsoft .NET Framework 2.0-based application on a computer that is using a 64-bit processor. The application uses the ShowDialog method, and the method specifies an IWin32Window owner. When this application runs, you receive a NullReferenceException exception.



Download information
The following file is available for download from the Microsoft Download Center:

Download the 323308_intl_x64_zip.exe package now.

Release Date: 9/5/2007

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to obtain Microsoft support files from online services

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Hotfix information
A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Microsoft .NET Framework 2.0 service pack that contains this hotfix.

To resolve this problem immediately, 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.

Prerequisites
You must have the Itanium-based version or the x64-based version of the .NET Framework 2.0 installed to apply this hotfix.

Restart requirement
You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English 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.

The .NET Framework 2.0 on a computer that is running an x64-based version of Windows Vista


STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For more information about the ShowDialog method, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/library/w61zzfwe.aspx

For more information about the NullReferenceException exception, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/library/system.nullreferenceexception(vs.80).aspx

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional query words: ShowDialog 64-bit NullReferenceException SHBrowseForFolder RunDialog

Keywords: kbexpertiseadvanced kbfix kbpubtypekc kbqfe kbhotfixserver KB941132

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