Maybe this link on Outlook parameters will help :-
Blat is a great utility for this purpose and seems to work all the way through XP. It may work on Vista too but I have not tested it. You will need to be able to connect to destination port 25 so be sure your firewall or AV permits this type of connection.
I don’t thing that it would be possible, in fact, you don’t actually need to give yourself a hard time using the command prompt just to send a file. There are many free email providers to use on the Internet, use them efficiently and you are done.