Dit is wel een aardige om een paar weken te proberen:
X-NetStat Professional displays information on all your
current Internet and network connections in a graphical
interface.
These connections are established each time you visit a web
page, send an ICQ message, check your email, or anytime you
do network activity that requires you to connect to another
computer.
They also appear when outside computers attempt to connect
to your machine, authorized or not. Information shown
includes local and remote addresses, local and remote ports,
the status, the age of the connection, and the
program/process behind it.
http://www.softpile.com/Utilities/Network/Review_34690_index.html