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From the same article:
"6.2 Free Utility Reveals Secret Internet Connections
In my October "Tip of the Month" [1], I talked about the
usefulness of having a port enumerator utility to tell you what
programs on your PC were connected to the internet. This can be
invaluable when trying to trace down the source of suspicious
internet activity.
I mentioned that, while there were some excellent free port
enumerators that told you the programs that were connected, I
couldn't find anything free that told you which programs were
actively transmitting or receiving, which is what you really
want to know.
That prompted subscriber T. Jansen to email me about a free
utility that does just that. It's not really a Port Enumerator
but is more like an Upload/Download meter that identifies the
programs responsible for current network traffic. This makes it
ideal for identifying sudden unexplained internet activity.
Once you have identified the program responsible, this utility
can track down the port involved, the IP of the remote site and
its domain name. This allows you to track down whether your PC
is talking to a legitimate web site or some hostile site intent
on stealing your confidential information.
An essential security utility to have in your collection.
Freeware, Windows XP or later, 588KB."
[1] http://techsupportalert.com/issues/issue126.htm#Section_5.1
[2] http://www.nicocuppen.com/product.php?prodinfoID=15&prodID=11
"6.2 Free Utility Reveals Secret Internet Connections
In my October "Tip of the Month" [1], I talked about the
usefulness of having a port enumerator utility to tell you what
programs on your PC were connected to the internet. This can be
invaluable when trying to trace down the source of suspicious
internet activity.
I mentioned that, while there were some excellent free port
enumerators that told you the programs that were connected, I
couldn't find anything free that told you which programs were
actively transmitting or receiving, which is what you really
want to know.
That prompted subscriber T. Jansen to email me about a free
utility that does just that. It's not really a Port Enumerator
but is more like an Upload/Download meter that identifies the
programs responsible for current network traffic. This makes it
ideal for identifying sudden unexplained internet activity.
Once you have identified the program responsible, this utility
can track down the port involved, the IP of the remote site and
its domain name. This allows you to track down whether your PC
is talking to a legitimate web site or some hostile site intent
on stealing your confidential information.
An essential security utility to have in your collection.
Freeware, Windows XP or later, 588KB."
[1] http://techsupportalert.com/issues/issue126.htm#Section_5.1
[2] http://www.nicocuppen.com/product.php?prodinfoID=15&prodID=11