If you want to connect to internet and to download file from internet, there is some methods
From Oricutron
Download a software to do a bridge between 2 rs232 virtual ports : “Free Virtual Serial Ports” software. Download it and create a bridge between 2 virtual port (com2 & com3 for example).
In oricutron connect to com2 in oricutron.cfg : serial = ‘com:9600,8,N,1,COM2’
Download serial