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copied!<p>Okay, so I wrote this code to test the issue:</p> <pre><code>public void GetWin32_NetworkAdapter() { DataTable dt = new DataTable(); dt.Columns.Add("AdapterName", typeof(string)); dt.Columns.Add("ServiceName", typeof(string)); dt.Columns.Add("AdapterType", typeof(string)); dt.Columns.Add("IPEnabled", typeof(bool)); dt.Columns.Add("MacAddress", typeof(string)); //Try getting it by Win32_NetworkAdapterConfiguration ManagementClass mgmt = new ManagementClass("Win32_NetworkAdapter"); EnumerationOptions options = new EnumerationOptions(); options.EnumerateDeep = true; ManagementObjectCollection objCol = mgmt.GetInstances(options); foreach (ManagementObject obj in objCol) { DataRow dr = dt.NewRow(); dr["AdapterName"] = obj["Caption"].ToString(); dr["ServiceName"] = obj["ServiceName"].ToString(); dr["AdapterType"] = obj["AdapterType"]; dr["IPEnabled"] = (bool)obj["IPEnabled"]; if (obj["MacAddress"] != null) { dr["MacAddress"] = obj["MacAddress"].ToString(); } else { dr["MacAddress"] = "none"; } dt.Rows.Add(dr); } gvConfig.DataSource = dt; gvConfig.DataBind(); } </code></pre> <hr> <p>When it's run on a physical IIS box I get this: <a href="http://img14.imageshack.us/img14/8098/physicaloutput.gif" rel="nofollow noreferrer">Physical IIS server http://img14.imageshack.us/img14/8098/physicaloutput.gif</a></p> <p>Same code on Virtual IIS server: <a href="http://img25.imageshack.us/img25/4391/virtualoutput.gif" rel="nofollow noreferrer">Virtual server http://img25.imageshack.us/img25/4391/virtualoutput.gif</a></p> <p><strong>See a difference?</strong> It's on the first line. The virtual server doesn't return the "AdapterType" string. Which is why the original code was failing.</p> <p>This brings up an interesting thought. If Virtual Server is supposed to be an "virtual" representation of a real IIS server, why doesn't it return the same values?</p>

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