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Q172140: Verity Search ‘97 Causes IIS Authentication to Fail

Article: Q172140
Product(s): Internet Information Server
Version(s): WinNT:3.0
Operating System(s): 
Keyword(s): kb3rdparty
Last Modified: 08-MAY-1999

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The information in this article applies to:

- Microsoft Internet Information Server 3.0 
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SUMMARY
=======

Internet Information Server (IIS) systems with Verity Search '97 installed may
fail with the following symptoms:

- Verity Search'97 fails to operate with Anonymous password authentication
  disabled.

- No users (except administrators) can authenticate with Basic (Clear Text)
  password authentication, while NT Challenge/Response works fine.

- No users can access secure NTFS directories, including administrators.

CAUSE
=====

Verity Search'97 installs a new authentication filter in the Microsoft Windows
NT Server system registry. This filter, Authfilt.dll, is installed by Verity
Search'97 in:

  \\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
  Services\W3SVC\Parameters

According to Verity, this filter fails to work correctly with IIS.

WORKAROUND
==========

Please refer to the Verity FAQ ID:10218.0: "Using NT Authentication with your
Search'97 Information Server 3.0 Install."

This Verity FAQ is available in the Tech Support section on
http://www.verity.com.

Additional query words: iis

======================================================================
Keywords          : kb3rdparty 
Technology        : kbiisSearch kbiis300
Version           : WinNT:3.0
Hardware          : ALPHA x86
Issue type        : kbprb

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