Microsoft KB Archive/156409

= Basic Authentication Prompt Before NT Challenge/Response =

Article ID: 156409

Article Last Modified on 3/15/2000

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APPLIES TO


 * Microsoft Internet Information Server 1.0

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This article was previously published under Q156409





SYMPTOMS
If you select both Basic (Clear Text) and Windows NT Challenge/Response authentication from WWW Services properties and try to access the web server from a client logon to the Internet Information Server's domain, the web client should use the client logon credentials from the cache. However, a Username Password dialog box will appear on the web client.



CAUSE
If you select both Basic (Clear Text) and Windows NT Challenge/Response authentication from WWW Services properties, Internet Information Server should try to authenticate with Windows NT Challenge/Response authentication first. If that fails, Internet Information Server should try to authenticate with Basic (Clear Text). However, it is a known problem that Internet Information Server executes this sequence in reverse order.



STATUS
Microsoft has confirmed this to be a problem in Microsoft Internet Information Server version 1.0. This problem was corrected in Microsoft Internet Information Server version 2.0.

Keywords: kbinterop kbenv KB156409

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