Can't use, Strawberry Perl doesn't know Windows 2000 is an operating system :S
Windows will make my head bald.
Perhaps you could try ActivePerl:
http://www.activestate.com/activeperl/
perl tes3lint -f dup-rec Data\ Files/plugin.esp
Can't find "Data Files" directory. Won't be able to find mastersERROR opening "" (No such file or directory)ERROR opening "" (No such file or directory)ERROR opening "" (No such file or directory)