Mohamed, for the perl CPAN installs like these: perl -MCPAN -e 'install "You will need PDF::API2 for barcode generator"' perl -MCPAN -e 'install "You will need GD::Barcode for the new barcode generator"' perl -MCPAN -e 'install "You will need Data::Random for the new barcode generator"' perl -MCPAN -e 'install "You will need PDF::Reuse::Barcode for the new barcode generator"' perl -MCPAN -e 'install "You will need Net::LDAP if you want to authentify patrons through a LDAP"' Please note that the "You will need ... are intended as instructions, and not literal text. For the text in double quotes, if you decide you need these modules, delete the "You will need " and "for the ...". You will find they will now install correctly. Good luck. Mike