Setup Unable to Install Internet Authentication Services (IAS)

• Microsoft Internet Information Server version 4.0

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

Keywords :
Version : WINNT:4.0
Platform : winnt
Issue type : kbprb