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FIX: The list of extension files that the IisWebService.ListExtensionFiles method returns may be incomplete in IIS 6.0

Article ID:913441
Last Review:December 3, 2007
Revision:2.5
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SYMPTOMS

When you use the IisWebService.ListExtensionFiles method to enumerate the WebSvcExtRestrictionList metabase property in Microsoft Internet Information Services (IIS) 6.0, the list of extension files that the IisWebService.ListExtensionFiles method returns may be incomplete.

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CAUSE

This problem occurs because of a bug in the way that the IIS Active Directory Service Interfaces (ADSI) and Microsoft Windows Management Instrumentation (WMI) providers parse the text in the WebSvcExtRestrictionList metabase property.

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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 (http://support.microsoft.com/kb/889100/) How to obtain the latest service pack for Windows Server 2003

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Hotfix information

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. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

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, contact 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:
http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)
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.

Prerequisites

You must have Microsoft Windows Server 2003 Service Pack 1 (SP1) installed to apply this hotfix.

Restart requirement

You do not have to 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 SP1, Itanium architecture
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Adsiis.dll6.0.3790.2620585,21618-Jan-200603:14IA-64SP1Not Applicable
Iisext.dll6.0.3790.2620231,42418-Jan-200603:14IA-64SP1Not Applicable
Wadsiis.dll6.0.3790.2620291,32818-Jan-200603:14x86SP1WOW
Wiisext.dll6.0.3790.262082,94418-Jan-200603:14x86SP1WOW
Windows Server 2003 SP1, x64
File nameFile versionFile sizeDateTimePlatformSP requirementService branch
Adsiis.dll6.0.3790.2620391,16818-Jan-200603:13x64SP1Not Applicable
Iisext.dll6.0.3790.2620131,07218-Jan-200603:13x64SP1Not Applicable
Wadsiis.dll6.0.3790.2620291,32818-Jan-200603:13x86SP1WOW
Wiisext.dll6.0.3790.262082,94418-Jan-200603:13x86SP1WOW
Windows Server 2003 SP1, x86
File nameFile versionFile sizeDateTimeSP requirementService branch
Adsiis.dll6.0.3790.2620291,32818-Jan-200603:44SP1SP1QFE
Iisext.dll6.0.3790.262082,94418-Jan-200603:44SP1SP1QFE
Updspapi.dll6.2.29.0371,42412-Oct-200523:13NoneNot Applicable

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STATUS

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 Server 2003 Service Pack 2.

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MORE INFORMATION

After a clean installation of IIS, the text in the WebSvcExtRestrictionList metabase property is similar to the following.
WebSvcExtRestrictionList="0,*.dll

                                    0,*.exe

                                    0,C:\WINDOWS\system32\inetsrv\httpodbc.dll,0,HTTPODBC,Internet Data Connector

                                    0,C:\WINDOWS\system32\inetsrv\ssinc.dll,0,SSINC,Server Side Includes

                                    0,C:\WINDOWS\system32\inetsrv\httpext.dll,0,WEBDAV,WebDAV

                                    1,C:\WINDOWS\system32\inetsrv\asp.dll,0,ASP,Active Server Pages"
If the order of the items that are listed in the WebSvcExtRestrictionList metabase property is modified, the list of extension files that the IisWebService.ListExtensionFiles method returns may be incomplete. For example, if the 0,*.dll item and the 0,*.exe item are moved from the start of the text in the WebSvcExtRestrictionList metabase property, the IisWebService.ListExtensionFiles method does not return items that appear after the 0,*.dll item and the 0,*.exe item in the WebSvcExtRestrictionList metabase property.

Note The 0,*.dll item represents "All Unknown ISAPI Extensions." The 0,*.exe item represents "All Unknown CGI Extensions."

This issue can affect the installation of a Microsoft Systems Management Server (SMS) 2003 management point. When you try to install a new management point or when you try to do a site reset after you install a hotfix for an existing management point, an error message that is similar to the following is logged in the Mpsetup.log file:
<11-17-2005 18:16:44> [18:16:44] @@ERR:25006 <11-17-2005 18:16:44> Setup was unable to create the Internet virtual directory CCM_System The error code is 80020009 <11-17-2005 18:16:50> MP.MSI exited with return code: 1603 <11-17-2005 18:16:50> Backing up MPMSI.log to D:\SMS\logs\MPMSI.log.LastError <11-17-2005 18:16:50> Fatal MSI Error - MP.MSI could not be installed.
Additionally, an error message that is similar to the following is logged in the Mpmsi.log file:
(UNKNOWN) [18:16:34] CheckIfIISObjectExists(D:\SMS_CCM\ccmisapi.dll) returning FALSE (UNKNOWN) [18:16:34] Ignoring removal of Extension File Record "D:\SMS_CCM\ccmisapi.dll" as it does not exist
For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 (http://support.microsoft.com/kb/824684/) Description of the standard terminology that is used to describe Microsoft software updates

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APPLIES TO
Microsoft Internet Information Services 6.0

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Keywords: 
kbautohotfix kbwinserv2003sp2fix kbwinserv2003presp2fix kbfix kbbug kbpubtypekc kbhotfixserver kbqfe KB913441

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