We recommend that you use this UI to control the state of each device.
Independent software vendors (ISVs)We do not recommend that ISVs create applications that directly change the software radio state of devices, because this could cause inconsistency between the Windows operating system managed settings and the actual radio state of the devices.
Hardware vendorsWe do not recommend that hardware vendors control the radio states of hardware. Although the configuration is supported, we do not recommend any kind of radio switch on the PC. If such a switch is implemented, an HID driver must integrate with the Windows 8 radio control experience. A sample of an HID driver can be found here.
Note Appendix 3 of this white paper includes information about hardware radio switches.