I need to write a program for a PC that has both a full-time LAN connection
to the internet, as well as a dial-up connection.  I am able to establish
the dial-up connection without a problem programmatically.  The problem is
that the program must sometimes use the LAN internet connection for some
things, and the Dial-up connection for other things.

I am using the InternetAutodial function to establish the dial up
connection, but I do not know how to tell the InternetOpen function to use
this dail-up connection instead of the LAN connection (both of which are
active).

Any advice is appreciated.