FIX: Web applications that use the Jet database engine may stop responding under heavy load (838306)


The information in this article applies to:

  • Microsoft Internet Information Services version 6.0
  • the operating system: Microsoft Windows Server 2003

SYMPTOMS

Your Web applications that use the Microsoft Jet database engine may stop responding.

Note Microsoft Access uses the Jet database engine.

CAUSE

This problem occurs because a bug exists in the Jet database engine. This problem occurs only on Microsoft Windows Server 2003.

In Windows Server 2003, COM+ changes how frequently the CoFreeUnusedLibraries function is called. This change causes the Jet drivers to reinitialize frequently. This behavior may cause a deadlock condition.

This problem occurs most frequently when the Web server is under a heavy load.

RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for Windows Server 2003. For more information, 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

Hotfix information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it 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 Windows Server 2003 service pack that contains this hotfix.

To resolve this problem immediately, 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:

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

Before you install this hotfix, you must install the security update that is described in the following Microsoft Knowledge Base article:

837001 MS04-014: Vulnerability in the Microsoft Jet Database Engine could permit code execution

Restart requirement

You must restart the computer after you apply this hotfix.

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 tool in Control Panel.
   Date         Time   Version     Size     File name
   -----------------------------------------------------
   17-May-2004  23:38  4.0.8704.0  241,693  Msjtes40.dll

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, 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

REFERENCES

For more information about the Jet database engine, click the following article number to view the article in the Microsoft Knowledge Base:

299973 Using Microsoft Jet with IIS

Modification Type:MinorLast Reviewed:6/2/2006
Keywords:kbfix kbQFE kbHotfixServer kbbug KB838306 kbAudDeveloper
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