Do it. It detected all of the drivers on a relatively new Acer of mine, where anything pre-vista will not.
I found it quick and a joy to use at first glance. When I have time I will treat it more seriously and allow it to go online. One of my main problems is firewalling. I find this holier than thou, 'use IP chains not a GUI, it's the only way to understand what you're doing' argument to be a tad contentious and founded on the premise that I have time to be an old fashioned geek.
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