Outbound URL filtering using LSP

Hi,

I am trying to do outbound URL filtering using LSP, basically I
check outbound HTTP request from WSPSend and if I find the URL that
needs to be blocked, then I call WSPCloseSocket and return the error
code from that call, that works fine with Firefox, but for IE, it
will display "Internet Explorer cannot display the webpage". Is it possible not showing this page and leave the previous page?

Anything I should change, such as return different error code, set
lpErrno parameter to specific Winsock error code? TIA.

-Andy

[596 byte] By [andy.y.huang] at [2008-1-10]