The other day, I had a need to programmatically figure out what the name of the Wifi network I was connected to. Thought I’d share the code:

ManagementClass mc = new ManagementClass(”root\\WMI”, “MSNdis_80211_ServiceSetIdentifier”, null);
ManagementObjectCollection moc = mc.GetInstances();
foreach (ManagementObject mo in moc)
{
  string wlanCard = (string)mo["InstanceName"];
  bool active = (bool)mo["Active"];
  byte[] ssid = (byte[])mo["Ndis80211SsId"];
  string ssidString = Encoding.ASCII.GetString(ssid);
  Console.WriteLine(”{0}\r\n{1}\r\n{2}”, wlanCard, active, ssidString);
  Console.WriteLine();
}

WMI Rules.