Microsoft KB Archive/184372

= Setup Unable to Install Internet Authentication Services (IAS) =

Article ID: 184372

Article Last Modified on 6/23/2005

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APPLIES TO


 * Microsoft Internet Information Server 4.0

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This article was previously published under Q184372



We strongly recommend that all users upgrade to Microsoft Internet Information Services (IIS) version 6.0 running on Microsoft Windows Server 2003. IIS 6.0 significantly increases Web infrastructure security. For more information about IIS security-related topics, visit the following Microsoft Web site:

http://www.microsoft.com/technet/security/prodtech/IIS.mspx



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

Keywords: kbprb KB184372

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