DOCUMENT:Q196309  03-APR-2002  [iis]
TITLE   :IIS 4.0 Stops Responding (Access Violates) When Adding Counter
PRODUCT :Internet Information Server
PROD/VER::4.0
OPER/SYS:
KEYWORDS:kbWinNT400sp4fix

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The information in this article applies to:

 - Microsoft Internet Information Server version 4.0 
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SYMPTOMS
========

Microsoft Internet Information Server 4.0 stops responding (access violates)
when adding the counter PdhVBAddCounter (Pdh.dll).

CAUSE
=====

The PdhVBAddCounter stops responding if any of the following DLLs are enabled
and the Windows NT Option Pack is installed:

   Ftpcrts2.dll
   W3ctrs.dll
   Nntpctrs.dll

RESOLUTION
==========

To resolve this problem, obtain the latest service pack for Windows NT 4.0 or
Windows NT Server 4.0, Terminal Server Edition. For additional information,
please see the following article in the Microsoft Knowledge Base:

   Q152734 How to Obtain the Latest Windows NT 4.0 Service Pack


STATUS
======

Microsoft has confirmed this to be a problem in Internet Information Server
version 4.0. This problem was first corrected in Windows NT 4.0 Service Pack 4.0
and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.

For additional information, click the article number below to view the article in
the Microsoft Knowledge Base:

   Q190157 Support for Windows NT 4.0 Option Pack on Terminal Server

Additional query words: Performance Monitor NTOP Option Pack AV

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Keywords          : kbWinNT400sp4fix 
Technology        : kbiisSearch kbiis400
Version           : :4.0
Issue type        : kbbug
Solution Type     : kbfix

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Copyright Microsoft Corporation 2002.