Lol?....
One of these /should/ give you access to your router itself, If it doesn't, open cmd.exe, type in tracert google.com and find the 192. address for the router, or use ipconfig.
Your router probs has its default username/password on it, admin/admin admin/pass admin/password (various other default login details)
From your routers page, you'll access everything you need/want.
regards
Tw
P.s - You wont find a /program/ to shut internet down for other machines unless your PC is acting as the hub/router