Free Ip tracer, it was built for tracking down spammersThis program has three ip tracer tools.

One of them is a visual tracking tool, you can see in a chart what country, city, server the spamming is coming from.Network tool "Network agent" to give you live picture how status is on your network disks.PcExplorer will give you an improved (better) working environment, than you have to day.Free to try.