You may receive "Out of memory" error messages when you run a multithreaded program that uses the IIS ADSI provider on a Windows Server 2003 SP1-based computer (909289)

CAUSE

This problem occurs because information that is cached by the ADSI provider (Adsiis.dll) is flushed without synchronizing the operation across all threads.

The ADSI provider has a per-thread information cache. A Component Object Model (COM) program calls the DLLCanUnloadNow function in the ADSI provider periodically. When the DLLCanUnloadNow function is called by the COM program, information that is cached by the ADSI provider is flushed after a second thread confirms cache initialization, but before the thread tries to use the information cache. When this occurs, you experience the problem that is mentioned in the "Symptoms" section.

RESOLUTION

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

To apply this hotfix, you must have Windows Server 2003 SP1 installed on the computer.

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 tool in Control Panel.Windows Server 2003, x86-based versions

File name	File version	File size	Date	Time	Platform
Adsiis.dll	6.0.3790.2548	291,328	14-Oct-2005	04:52	x86

Windows Server 2003, Itanium-based versions

File name	File version	File size	Date	Time	Platform	SP requirement	Service branch
Adsiis.dll	6.0.3790.2548	585,216	13-Oct-2005	17:12	IA-64	SP1	SP1QFE
Wadsiis.dll	6.0.3790.2548	291,328	13-Oct-2005	17:12	x86	SP1	WOW

Windows Server 2003. x64-based versions

File name	File version	File size	Date	Time	Platform	SP requirement	Service branch
Adsiis.dll	6.0.3790.2548	391,168	13-Oct-2005	17:12	x64	SP1	SP1QFE
Wadsiis.dll	6.0.3790.2548	291,328	13-Oct-2005	17:12	x86	SP1	WOW

MORE INFORMATION

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

913644 FIX: The W3wp.exe process stops responding when you run an out-of-process COM+ application on a Windows Server 2003 S-based computer

For more information about the description of 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

Technical support for x64-based versions of Microsoft Windows

Your hardware manufacturer provides technical support and assistance for x64-based versions of Windows. Your hardware manufacturer provides support because an x64-based version of Windows was included with your hardware. Your hardware manufacturer might have customized the installation of Windows with unique components. Unique components might include specific device drivers or might include optional settings to maximize the performance of the hardware. Microsoft will provide reasonable-effort assistance if you need technical help with your x64-based version of Windows. However, you might have to contact your manufacturer directly. Your manufacturer is best qualified to support the software that your manufacturer installed on the hardware.

For product information about Microsoft Windows XP Professional x64 Edition, visit the following Microsoft Web site:

http://www.microsoft.com/windowsxp/64bit/default.mspx

For product information about x64-based versions of Microsoft Windows Server 2003, visit the following Microsoft Web site:

http://www.microsoft.com/windowsserver2003/64bit/x64/default.mspx