The short answer is no. Windows ,as an OS, does not have the *nix philosophy of treat everything as a file. *nix will read the file as a executable if it marked so, then it will read head of the file to figure out what to do. Windows only uses file extensions to figure out what to do with file (i.e. .exe .com .bat).

You can use different extentions like .prl or .p and associate them to perl

grep> cd pub
grep> more beer
[download]