How do I programatically start an internet connection?

I want to programmatically start broadband (PPOE) internet connection.

I'm not sure if InternetDial will work as the documentation clearly says that it initiates a connection to the In开发者_JAVA技巧ternet using a modem.

I tried searching for the API function but I couldn't find one.

I am trying to create a program that will take a user name and password and then connect to the internet. Similar to this program.

Right now I just need the name of API function as I want to implement this program on my own.

Thanks.

Maybe

InternetOpen http://msdn.microsoft.com/en-us/library/aa385096(VS.85).aspx

or

InternetGoOnline http://msdn.microsoft.com/en-us/library/aa384734(VS.85).aspx