C#扩展名关联【转】

  string keyName;
            string keyValue;

            keyName = "MyApp";
            keyValue = "My Application";

            RegistryKey key;
            key = Registry.ClassesRoot.CreateSubKey(keyName);
            key.SetValue("", keyValue);
            key = key.CreateSubKey("shell");
            key = key.CreateSubKey("open");
            key = key.CreateSubKey("command");
            key.SetValue("", @"C:\app.exe");

            keyName = ".bbb"; //相应后缀
            keyValue = "MyApp";
            key = Registry.ClassesRoot.CreateSubKey(keyName);
            key.SetValue("", keyValue);