How can i send a Command to "cmd"

I want to disconnect a WAN Miniport(PPPoE) i do not know about any methode in autoit that can do it.Therefore i decide do it via cmd.
There is no way to use ControlSend. because When someone change operating drive. cmd title will also changed for example ("C:\Windows\system32\cmd.exe") If drive changed ("D:\Windows\system32\cmd.exe") Windows tittle is changed.