File transfer from Palm to PC using telephone.

Hello, I need to send files from a PalmOS palm to a Windows PC using a modem. I resolved the problem implementing a private protocol, which at the lower level uses the serial port API of each platform to use AT modems, but I think that if I use a standard protocol, I'd do this thing better.

My idea is to use a DialUp service to connect with a windows RAS server, establish a PPP link and send packets. Unfortunately I'm new to this things, and need help:
1) how can I use the RAS-server service for Windows systems?
2) are there better choices than this to achieve my goal?

I'm using VC++6.0

Thank you all for any good suggestion,
BrownB