Try

use lib "<FULLPATH HERE TO>/Modules";
use test;
[download]

edit: I prefere "use lib" instead messing around with @INC;

edit2: Where is my coffee? I deleted my old text: if you have "<FULLPATH HERE TO>/Modules" in your @INC, you have to ommit the "Modules::" Part in "use test". And check your spelling of "module" and "modules"

k