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Windows Firewall Log Analyser is a free utility that will read and analyze your native Windows Firewall Log. It will quickly show you what protocols, ports and source hosts are the most active on your network. Using this program can help you to rapidly track down the source of malware or noisy network applications, and help you optimize your home or corporate network. The tool comes with its own database of network service ports and protocols, and can offer suggestions on what to do when particular packets are discovered.