$ perl script.pl where script.pl
in reply to Windows remote login
- connects (via Modem, LAN, telepathy?) to the Win box;
- logs in;
- executes (that's a hint, sort of) some Win built-ins and
- concludes with a process to find and download your selected files.
Unless its going to be the same Win machine, the same commands and same files to download on each run of your script, you'll probably want to provide some way to tell the script the "which" or "where" of each of the preceeding.
Sorry, but when your write "How can I do it using perl script?," you appear to be asking us to write the script. We don't do that (in theory, anyhow); we'll be happy to help you learn, if you demonstrate some desire to do so, and provide some evidence that you've made an effort to write your own program.
Come back with an update on what you've worked out and the problem that still has you stuck: then, you'll find lots of willing help. Otherwise, hire a programmer.