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   HTML Files (asp)
Error Code   0x00000000
Requested URL   http://www.ecommercetax.com:80/key/Search+Engine+Submission.html?qs=06oENya4ZGJbLUV9ocSvkfmTQyJLaoAEiTo3AXaFGYi6CngNUKccHk_vu97ifKQJZaU81DMfAVij43KInma3f4YR_vH-cxe0DjZzYQTdmO1P2edbD9pRANUF-3-2i2PSZWuLMMdsTD_7zOBTsyz2xE65uG1Tp8WiGGhMszwaccFv883RF6-rnRYJoFCyVpgEwjLB4NDPMUelrZ0iPQRmnOkLJnREn9TYRfo7LrXRa1o1M4r1svSuiMiY5L6QUisl31WUKKBfA.,YT03
Physical Path   E:\web\mediains\key\Search+Engine+Submission.html
Logon Method   Not yet determined
Logon User   Not yet determined

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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