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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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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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:

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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: 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 name	File version	File size	Date	Time	Platform	SP requirement	Service branch
Adsiis.dll	6.0.3790.2620	585,216	18-Jan-2006	03:14	IA-64	SP1	Not Applicable
Iisext.dll	6.0.3790.2620	231,424	18-Jan-2006	03:14	IA-64	SP1	Not Applicable
Wadsiis.dll	6.0.3790.2620	291,328	18-Jan-2006	03:14	x86	SP1	WOW
Wiisext.dll	6.0.3790.2620	82,944	18-Jan-2006	03:14	x86	SP1	WOW

Windows Server 2003 SP1, x64

File name	File version	File size	Date	Time	Platform	SP requirement	Service branch
Adsiis.dll	6.0.3790.2620	391,168	18-Jan-2006	03:13	x64	SP1	Not Applicable
Iisext.dll	6.0.3790.2620	131,072	18-Jan-2006	03:13	x64	SP1	Not Applicable
Wadsiis.dll	6.0.3790.2620	291,328	18-Jan-2006	03:13	x86	SP1	WOW
Wiisext.dll	6.0.3790.2620	82,944	18-Jan-2006	03:13	x86	SP1	WOW

Windows Server 2003 SP1, x86

File name	File version	File size	Date	Time	SP requirement	Service branch
Adsiis.dll	6.0.3790.2620	291,328	18-Jan-2006	03:44	SP1	SP1QFE
Iisext.dll	6.0.3790.2620	82,944	18-Jan-2006	03:44	SP1	SP1QFE
Updspapi.dll	6.2.29.0	371,424	12-Oct-2005	23:13	None	Not Applicable

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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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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:Additionally, an error message that is similar to the following is logged in the Mpmsi.log file: For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:

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