tie( $var, 'Win32::MMF::Shareable', 'var' ); # OR tie( $var, 'Win32::MMF::Shareable', 'var', { connect => 'auto' } ); # map if already available, otherwise create tie( $var, 'Win32::MMF::Shareable', 'var', { connect => 1 } ); # must already exist tie( $var, 'Win32::MMF::Shareable', 'var', { connect => 0 } ); # must not already exist