HTTP Error 404.11 - Not Found

The request filtering module is configured to deny a request that contains a double escape sequence.

Most likely causes:

  • The request contained a double escape sequence and request filtering is configured on the Web server to deny double escape sequences.

Things you can try:

  • Verify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting in the applicationhost.config or web.confg file.

Detailed Error Information:

Module   RequestFilteringModule
Notification   BeginRequest
Handler   StaticFile
Error Code   0x00000000
Requested URL   http://www.francescoinviaggio.it:80/IL%20PIACERE%20DI%20CAMMINARE%20ALBUM%20FOTO/02)%2005%20Febbraio%202011%20-%20Parco%20di%20Monte%20Catalfano%20-%20Bagheria%20(PA)%20-%20Monte%20Catalfano%20e%20Cavallo%20di%20Mezzo/slides/DSC_5368.html
Physical Path   D:\inetpub\webs\francescoinviaggioit\IL%20PIACERE%20DI%20CAMMINARE%20ALBUM%20FOTO\02)%2005%20Febbraio%202011%20-%20Parco%20di%20Monte%20Catalfano%20-%20Bagheria%20(PA)%20-%20Monte%20Catalfano%20e%20Cavallo%20di%20Mezzo\slides\DSC_5368.html
Logon Method   Not yet determined
Logon User   Not yet determined
Request Tracing Directory   D:\LogFiles\FailedReqLogFiles

More Information:

This is a security feature. Do not change this feature unless the scope of the change is fully understood. You should take a network trace before changing this value to confirm that the request is not malicious. If double escape sequences are allowed by the server, modify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting. This could be caused by a malformed URL sent to the server by a malicious user.

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