HTTP Error 400.0 - Bad Request

ASP.NET detected invalid characters in the URL.

Most likely causes:

Things you can try:

  • Create a tracing rule to track failed requests for this HTTP status code. For more information about creating a tracing rule for failed requests, click here.

Detailed Error Information:

Module   FormsAuthenticationModule
Notification   AuthenticateRequest
Handler   StaticFile
Error Code   0x00000000
Requested URL   https://web.wwnorton.com:443/college/anthro/…/ch/…/questions.sht&
Physical Path   D:\inetpub\wwroot\college\anthro\…\ch\…\questions.sht&
Logon Method   Not yet determined
Logon User   Not yet determined

More Information:

The request could not be understood by the server due to malformed syntax.

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