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FIX: You may experience delays when an operating system shuts down if the computer is running a managed service together with the .NET Framework 2.0

Consider the following scenario:
  • You create a managed service that uses the Microsoft .NET Framework 2.0.
  • You run the managed service on a computer that is running the .NET Framework 2.0.
In this scenario, the managed service is not stopped in a timely manner on the computer when the operating system shuts down. Therefore, you may experience delays when the operating system shuts down.
When you shut down the operating system, the OnShutdown method is called. However, the OnShutdown method does not change the system state to the Stop state. This behavior causes the service to appear unresponsive. Therefore, the shutdown process is delayed.

Service pack information

To resolve this problem, obtain the latest service pack for Windows Vista. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
935791 How to obtain the latest Windows Vista service pack

GDR information

To resolve this problem, download a General Distribution Release (GDR) from the Microsoft Download Center.

The following files are available for download from the MicrosoftDownload Center:

DownloadDownload the x86 GDR package now.

DownloadDownload the x64 GDR package now.


To install this GDR, the .NET Framework 2.0 must be installed on the computer.

Restart requirement

You have to restart the computer after you apply this hotfix.

GDR replacement information

This GDR does not replace any other GDR.

The English version of this GDR 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, x86-based version
File nameFile versionFile sizeDateTime
The .NET Framework 2.0, x64-based version
File nameFile versionFile sizeDateTime
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows Vista Service Pack 1.
For more information about the OnShutdown method, visit the following Microsoft Web site:

Article ID: 943412 - Last Review: 05/20/2008 23:21:07 - Revision: 3.0

  • Microsoft .NET Framework 2.0
  • Windows Vista Business
  • Windows Vista Enterprise
  • Windows Vista Home Basic
  • Windows Vista Home Premium
  • Windows Vista Starter
  • Windows Vista Ultimate
  • kbvistasp1fix kbexpertiseinter KB943412