When I try the following, I get an error: # Can't call method "ioFRefNum" without a package or object reference. File 'Untitled'; Line 7 Perchance, anyone have any idea what I'm doing wrong? #!perl use Mac::Files; $file ="full:path:to:file"; $cat = FSpGetCatInfo($file); $busy = $cat->ioFRefNum; ***** Want to unsubscribe from this list? ***** Send mail with body "unsubscribe" to mac-perl-request@iis.ee.ethz.ch