>I'm (still) looking for a way to establish a dial up connection.
>Someone pointed me to the RASAPI32.DLL. If anyone has any experience doing this, I would really appreciate it.

Have you tried wwIPStuff yet? Part of its features:

Dial up Networking
Basic support for dialing and disconnecting a RAS Dial-up Networking Connections.

It simple to use, and includes some sample stuff.