I want to build an application that will uploadas and
downloads some files throught tcp/ip over the internet.
I have to bulit two apps as i understand one clinet and onw
is there any extra i can use? are they any examples i can
All three will provide the framework to build what you want,
and all three are free as well. The key here will be having access
to the network server side to set up port forwarding and firewall
exceptions for the server version of the software.