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.istruzionefc.it:80/public/articoli/allegati/120402+uuaatt+e+ddss+ctp+trasm+docum.pdf
Physical Path
D:\inetpub\webs\istruzionefcit\public\articoli\allegati\120402+uuaatt+e+ddss+ctp+trasm+docum.pdf
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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