I want to download a piece of file?

[mismael85]

hi every body;

i am working on a program that download files from the internet and i want to download these files as fast as possible
so i want to make more than one connection to download each file and each connection download a piece of this file
so how can i divide the file to pieces and download it then i will regroup these pieces?
thank you.

[squidge]

(most) FTP and (some) HTTP servers support a "resume" command where you can tell the server you already have the first X bytes of a file and to start the transfer at x+1. Use this you can request a part of the file.