试试这个

 public void CreateList()

    {

        RegistryKey RegKey = Registry.LocalMachine;

        RegKey = RegKey.OpenSubKey(@"SYSTEM\ControlSet001\Control\Network\{4D36E972-E325-11CE-BFC1-08002BE10318}");

        string[] KeysList = null;

        if (RegKey.GetSubKeyNames().Length > 0)

            KeysList = RegKey.GetSubKeyNames();       //Get List

        foreach (string Key in KeysList)

        {

            //Except "useable" key--"Connection",it's other names "Descriptions";

            if (Key == "Descriptions")

                continue;

            RegistryKey SubKey = RegKey.OpenSubKey(Key);

            SubKey = SubKey.OpenSubKey("Connection");

            comboBox1.Items.Add(SubKey.GetValue("Name"));

        }

    }