Article ID: 188717 - Last Review: June 16, 2006 - Revision: 4.5

PRB: Request.ServerVariables("LOGON_USER") Returns Empty String

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This article was previously published under Q188717
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SYMPTOMS

Accessing the Request.ServerVariables("LOGON_USER") variable from Active Server Pages (ASP) returns an empty string.
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CAUSE

The LOGON_USER variable is not populated if you use the Allow Anonymous security to access the ASP page.

In order for the LOGON_USER variable to be populated, the user must be authenticated using either Basic or NT Challenge/Response security.
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STATUS

This behavior is by design.
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APPLIES TO
  • Microsoft Active Server Pages 2.0
  • Microsoft Active Server Pages 3.0
  • Microsoft Internet Information Server 4.0
  • Microsoft Internet Information Services 5.0
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Keywords: 
kbprb kbscript kbsecurity KB188717
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