Windows has the option to automatically dial your Internet Service Provider (ISP) to establish an Internet connection. This option can be controlled using this tweak.
Create a new binary value named "EnableAutodial", and set the new value to equal "01 00 00 00" to enable autodial or "00 00 00 00" to disable it.
Note: This restriction can be used either on a user by user basis by adding it to HKEY_CURRENT_USER or on a computer wide basis by adding it to HKEY_LOCAL_MACHINE.
To view the list of names and addresses recorded by AutoDial, type the following command at a command prompt: rasautou -s
To delete a name or address entry from the list: Start/Run/Regedit HKEY_CURRENT_USER\Software\Microsoft\RAS Autodial\AddressesYou can delete any TCP/IP addresses that you see under this key.
Note that AutoDial can use IP addresses, DNS fully qualified domain names (FQDN), and NetBIOS names.