ok first thing first Remote desktop only works if the other computer has Windows XP proffessional. Telnet requires you to turn on the telnet service on that computer and Telnet is very unsafe unless you want full command line control of that computer in which case it would be used to use a vpn connection as well. Ftp Requires a FTP service to be running on the remote computer. Which can be done if you have proffessional using IIS. Although through all cases you will have to reconfigure the remote computers firewall to allow you in on your desired port. which I suggest you change the ftp port for the sake of computer safety if you chose to use the ftp service.