FTP from app server to windows environment

I have a program that when it runs in background, creates a file on the app server. I would to be able to FTP the file to our network. I am testing the process with my C drive and I am not have much success. I am using the ftp_connect with the following parameters

USER = windows user

PASSWORD = windows password

ACCOUNT = blank

HOST = app server name

RFC_DESTINATION = IP address of my machine

GATEWAY parameters are all blank.

i am not able to create the connection. Do I have the parameters coded correctly?

thanks in advance for your help.