Hi There, From time to time, I am get the following error message when a PERL process is extracting a ZIP file containing PDF documents to a network drive on another server: IO error: write error during copy : Invalid argument at E:/Perl/lib/Archive/Zip/Member.pm line 935 Any idea why I am getting this error? Could it be related to a fact that the process is extracting across a network. I am using version 1.20 of Archive-zip and the process is running on the windows platform. Appreciate any thoughts that anyone might have thanks