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Q184372: Setup Unable to Install Internet Authentication Services (IAS)

Article: Q184372
Product(s): Internet Information Server
Version(s): WINNT:4.0
Operating System(s): 
Keyword(s): 
Last Modified: 06-MAY-1999

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The information in this article applies to:

- Microsoft Internet Information Server 4.0 
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REFERENCES
==========

Windows NT 4.0 Option Pack Release Notes

SYMPTOMS
========

When you upgrade the Internet Authentication Services (IAS) via the Windows NT
4.0 Option Pack on a computer running a beta version of IAS on Windows NT Server
4.0, an error message may appear indicating that Setup was unable to install
IAS.

NOTE: This may also happen on non-US versions of Windows NT (for example, German,
Japanese, or French).

WORKAROUND
==========

To work around this problem, uninstall IAS, and then re-install it from the
Windows NT 4.0 Option Pack.

The release notes for the Internet Authentication Services in the
C:\WinNT\Help\iis\htm\core\iasread.htm file state:

  Before you install this release of IAS on a computer running the Beta 3
  version, you must stop IAS and then uninstall it.

Additional query words: NTOP IAS Beta Install

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Keywords          :  
Technology        : kbiisSearch kbiis400
Version           : WINNT:4.0
Issue type        : kbprb

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