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> So a TCP/IP buffer overflow won't crash Windows? Windows > handles all TCP/IP > processing first so in essence it is still vulnerable. Yes and No. Most (read: worth their cost) OS hosted firewalls do, as Doug stated, pre-empt the OS and get first bite of the traffic before Windows - they replace the Winsock .dll, however they do rely on the Windows (whether written by Microsoft or the device manufacturer) device drivers for the NIC, so if there are exploits for the device drivers then the firewall software is venerable, but it's unlikely as the driver basically just passes off the traffic to registered interested parties - the protocol stack, i.e. the firewall software. --phil
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