In a network environment, you try to distribute software or an update from a computer that is running Windows Server 2003.
You use the bandwidth control by Quality of Service (QoS).
In this scenario, the computer intermittently stops responding.
This issue occurs because of a deadlock in the Msgpc.sys component.
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.
If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
To apply this hotfix, your must be running Windows Server 2003 Service Pack 2 (SP2).For more information about how to obtain a Windows Server 2003 service pack or a Windows XP Professional x64 Edition service pack, click the following article number to view the article in the Microsoft Knowledge Base:
889100 How to obtain the latest service pack for Windows Server 2003
To use the hotfix, you do not have to change the registry.
You must restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace a previously released hotfix.
The English version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows Server 2003 file information notes
In addition to the files that are listed in these tables, this hotfix also installs an associated security catalog file (KBnumber.cat) that is signed with a Microsoft digital signature.
For all supported x86-based versions of Windows Server 2003
For all supported x64-based versions of Windows Server 2003
For all supported IA-64-based versions of Windows Server 2003
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For more information about QoS, visit the following Microsoft website: