Laurent’s Blog

From the author :

This 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.

Very good tool when you need to troubleshoot file/registry access and now some netwoking issues !

Download it from http://download.sysinternals.com/Files/ProcessMonitor.zip

Or use it directly from http://live.sysinternals.com/Procmon.exe