Wireshark-dev: Re: [Wireshark-dev] Usage of MS protocol documentation in Wireshark
From: Guy Harris <guy@xxxxxxxxxxxx>
Date: Tue, 7 Sep 2010 12:33:40 -0700
On Sep 7, 2010, at 12:31 PM, Stephen Fisher wrote:

> On Tue, Sep 07, 2010 at 03:11:37PM -0400, Eloy Paris wrote:
> 
>> Microsoft has their own packet analyzer, don't they? I don't recall 
>> its name, though.
> 
> Yes, Network Monitor.  It doesn't support all of the protocols that 
> Wireshark does, although Microsoft may have additional protocol support 
> that they use in house.

...and, speaking of Microsoft and open source, it claims to include some 4-clause-licensed BSD code (because the 4-clause license requires it), probably libpcap code to handle reading pcap files.