SAP connect to .NET

Hi all,

I'm trying transfer IDOCs between SAP and a .NET application using .NET connector. The logon's working and the application registers at the Gateway as well. I need clarifications on 2 aspects

1. How do I register the Pgm ID of the .NET application? (Is it required?)

2. How do I configer the destination in SAP. (RFC dest). Is it a TCP/IP Connection?

Hope to hear from you guys.

Thanks in advance

Regards,

Ananda