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Windows XP / Windows 7

I'd like to understand how a specific windows process (from a third-party vendor) behaves when it's selectively blocked from communicating on a network (by say, an overzealous software firewall). Is there a free (and ideally light-weight) tool I can use to do this? I don't want to block ALL network connectivity on the user workstation - just connection attempts from a specific process.

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Why the -1? This pertains to enterprise support / analysis for a user workstation. – Mike B Feb 5 '14 at 16:04
up vote 3 down vote accepted

This can be done using Windows Firewall. You can set some restrictions based on application instead than on in/out ports.

Here you can find a nice tutorial:


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