Microsoft KB Archive/927453

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Article ID: 927453

Article Last Modified on 12/6/2006



APPLIES TO

  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server



SYMPTOMS

Microsoft Office Outlook client computers cannot connect to Microsoft Exchange Server when it is running on a Microsoft Windows 2000 Server-based computer.

CAUSE

This problem occurs because of a timing problem in the Ancillary Function Driver for WinSock file (Afd.sys) in Windows 2000 Server.

When several MAPI client computers connect to Exchange Server at the same time, connections are accepted one after the other. However, because of the timing problem, Afd.sys may not notify the completion port of the final status after Afd.sys processes incoming connection requests. Then, the exchange thread that accepts an incoming connection stops responding with a pending status. This behavior occurs because the exchange thread does not receive the final status. Therefore, no new connection requests are accepted.

RESOLUTION

Hotfix information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

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

The computer must be running Windows 2000 Server with Service Pack 4 (SP4) to install this hotfix.

Restart requirement

You must 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.

File name File version File size Date Time Platform
Afd.sys 5.0.2195.7116 119,056 03-Nov-2006 08:34 x86


STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

For more information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:

816915 New file naming schema for Microsoft Windows software update packages


For more information about the standard terminology that is used to describe Microsoft software updates, 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


Keywords: kbexpertiseadvanced kbbug kbfix kbhotfixserver kbqfe kbwin2000presp5fix kbpubtypekc KB927453