AUTO TRANSFER A FILE EVERY 3 MINUTES USING A DIAL UP MODEM

I need a program either in VB.NET or C#.NET or simply in VB6 that sends a file (txt/xml/xls) every 3 minutes from my machine to a remote machine. My machine? will NOT be connected to the internet, however the other machine will be connected to the internet. On my machine, we will have a dial-up modem. The other machine can be connected thru another dial-up modem or if you prefer to use the internet somehow. The program should be very simple with just one screen that can allow me to choose a file from my machine and set up a remote phone number to send the file to, thats all.