What’s New in Windows Vista

Networking in Windows Vista is based on a protocol stack that has been completely rewritten. Dubbed the Next Generation TCP/IP stack, this redesign of the network underpinnings provides improvements in security, performance, and convenience that are largely invisible to ordinary users.

For example, additional security comes in the new ability of the Windows Filtering Platform to implement packet filtering at all levels of the TCP/IP protocol stack. Performance is enhanced by Receive Window Auto-Tuning, which dynamically determines the optimal receive window size based on changing network conditions; in previous versions, you can tweak the registry to set a fixed-size receive window that is generally appropriate for your ...

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