For what it's worth, the best solution I've come up with so far was to create a batch file containing:

@echo off
perl.exe -w c:\scripts\%1.pl
[download]

It's saved in my %PATH% and allows me to run the following command:

c:\data> runpl test
[download]

It's hardly elegant, but it works. I'm banking on there being more than one way... :)

Thanks again.