Network Traffic Monitor shows you which processes in your machine are causing how much TCP/IP network traffic and over which IP ports this traffic takes place. For each process it can show detailed information, including the path to the process executable, the remote IP address, and the resolved name of that IP address. An animated system tray icon will show you when IP traffic is taking place. Network Traffic Monitor can give you a historic overview of the network traffic and can save that info to an Excel spreadsheet or a text file for later examination.
Download and use it now: Network Traffic Monitor