Microsoft KB Archive/249245

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Article ID: 249245

Article Last Modified on 9/2/2005


  • Microsoft Internet Information Server 4.0

This article was previously published under Q249245


When you use Performance Monitor (Perfmon) to monitor Internet Information Server (IIS), the Internet Information Services - objects counter increases unexpectedly. This occurs only when all of the following conditions are met:

  • Your are using Windows NT Challenge/Response to secure the Web site.
  • Default document mapping is used.

Note that the counter never decreases until you stop the Iisadmin service.


To work around this issue, do one of the following:

  • Secure all documents except the default document.


  • Do not use default document mapping.

The counter will then behave as expected.


A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone 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.

The English version of this fix should have the following file attributes or later:

   Date      Time    Version      Size    File name     Platform
   01/21/00  22:20   4.02.0738    185.760 Infocomm.dll  x86
   01/21/00  22:20   4.02.0738    228.480 W3svc.dll     x86

   01/21/00  22:20   4.02.0738    304.400 Infocomm.dll  alpha
   01/21/00  22:21   4.02.0738    383.760 W3svc.dll     alpha



Microsoft has confirmed that this is a problem in Internet Information Server 4.0.


If the home directory of a Web site and the default document are secured with Windows NT Challenge/Response, and the default document is implicitly loaded (without the default document name specified in the URL), the Internet Information Services - objects counter increases by one for requests to the default document. The counter never decreases.

This is not a memory leak, but a problem setting the counter to the correct value.

Keywords: kbbug kbfix KB249245