http://blogs.technet.com/brad_rutkowski/archive/2008/02/22/taking-a-circular-netmon-capture-from-the-command-prompt.aspxYou've probably heard that netmon3.1 is out , but you might not know that you can easily launch a capture at the command prompt.&#160; I find this useful when we're waiting on a repro, we want a capture, but we don&#8217;t know when that's going to happen.&#160;enCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.technet.com/brad_rutkowski/archive/2008/02/22/taking-a-circular-netmon-capture-from-the-command-prompt.aspx#2922437Fri, 22 Feb 2008 23:23:01 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:2922437Kris<p>Thanks. This is very helpful. Is there an API to this tool so as to runs some reports and such.</p> http://blogs.technet.com/brad_rutkowski/archive/2008/02/22/taking-a-circular-netmon-capture-from-the-command-prompt.aspx#2922678Sat, 23 Feb 2008 02:02:38 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:2922678Brad Rutkowski<p>Check out <a rel="nofollow" target="_new" href="http://blogs.technet.com/netmon/">http://blogs.technet.com/netmon/</a> maybe they have what you need.</p>