This comes up early on Google...

Documentation is at http://cpansearch.perl.org/src/RSCHUPP/PAR-Packer-1.015/contrib/docs/where_is_it.txt

BTW: The solution when running unter "clean" is not quite right. The files will be extracted, just to a different location. I found scanning @INC to be the simplest solution.

sub extrafile($) { return $_.'/'.$_[0] if -e $_.'/'.$_[0] for @INC; die $_[0].' is missing'; }