Hi,
The good news is that perl is being found (or you would have got a different error). For the command you gave to work you need to cd the folder that contains example.pl. As regards finding your way around the shell, Googling for DOS commands turns up some useful links. Here's one such link The information you need will also be accessible under windows Help (try topics involving the term "command line") - but it might take some digging up.

Once you know the name of a command you can also get info about it by typing 'command /?' at the command prompt. For example try running chdir /?

Cheers,
Rob