FGet is a tiny portable tool which enables downloading files from a script.

The program has only two required parameters: the URL to download, and the name and path where you'd like it saved.

fget /url="http://www,domain.com/path/file.zip" /file="c:\archives\latest.zip"

Optional switches allow you to specify a user name, password or custom referring URL.

/rurl=[spoof/referring url]
/user=[username]
/pass=[password]

This worked well for us, but beware, fGet is very much a bare bones, essentials-only program. It doesn't check for the existence of the local file name you specify, it doesn't create directories in the path if they don't exist, it doesn't even display status messages to indicate progress or errors. Read the instructions in the archive (usage.txt) to make sure you understand all the issues.