Well based on what you wrote earlier, they want a Secure FTP server to transmit data. So either its SFTP if windows based or SCP if its Linux/Unix based.
If you are running just Win XP or Windows something not server, you can setup a FTP server using:
Highlights of FTP Server for Windows 7/2008/Vista/2003/XP - BPFTP Server 2011 from BPFTP
or setup FTP on your windows server which is free:
http://techie-buzz.com/how-to/instal...windows-7.html