Client Object In EtherCard Lib

Hi, I'm using the EtherCard Lib to make a communication between Arduino Simulator (using Proteus 8.3), and a WebSite.

The Proteus doesn't have a Ethernet Shield, but have ENC28j60. Then, i'm trying use the Arduino with this CI. But i don't know how to create a client in EtherCard lib, as the Ethernet.h

Example: In a Ethernet.h :

 EthernetClient client;
  if (client.connect(server, 80)) 

Is possible create a client in EhterCard like this?

Best Regards, Felipe Fonseca