Article ID: 186144 - View products that this article applies to.
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When you upgrade Windows NT 3.51 to Windows NT 4.0, Windows NT restarts to GUI-mode and you get a dialog box with "f" in the title bar and a red circle with a white "x", a capital "A", and the OK button.
The Setupapi.dll file on the system is newer than the Windows NT 4.0 Setupapi.dll file dated Aug. 8, 1996; therefore, it is not replaced with the Windows NT 4.0 Setupapi.dll file.
To correct this problem, do one of the following:
If an attempt was made to install Internet Explorer 4.0 Preview Version to Windows NT 3.51 and the installation failed, the Setupapi.dll file dated July 24, 1997, may be left in the %SystemRoot%\System32\ folder. During the Windows NT 3.51 to Windows NT 4.0 upgrade, the Setupapi.dll file dated July 24, 1997, is not replaced by the Windows NT 4.0 file dated Aug. 8, 1996, because it is newer.