Perhaps you downloaded a different edition than the ZIP edition. Since I usually use the "portable" edition, I know it doesn't have a relocation script, instead you start it via the portableshell.bat - the same should be true for the PDL edition.

In case it's really the ZIP edition, I'd assume it should be either perl.exe relocation.pl (without ".bat"), or relocation.bat (without .pl and without explicitly calling perl.exe, as that would be called from within the .bat file)