If you have any need to find out what your computer is really doing under the hood, you know that Process Monitor is the tool. Sysinternals released Process Monitor 2.0, termed as a major update to Process Monitor adds real-time TCP and UDP monitoring to its existing process, thread, DLL, file system and registry monitoring. You can now see the TCP and UDP activity processes performed, including the operation (e.g. connect, send, receive), local and remote IP addresses and DNS names, and operation transfer lengths. On Windows Vista, Process Monitor also collects thread stacks for network operations.

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