Kanex Group has introduced QuickPopup 4.5, a utility that allows users to securely exchange popup messages over corporate, school and home networks without connecting to the Internet. QuickPopup is available for Mac OS X, Mac OS Classic, Windows and Linux. Version 4.5 runs natively on both Intel- and PowerPC-based Macs. Some of the features of QuickPopup include: LAN messaging only; Peer-To-Peer message exchange; Sent and Received messages archive; message encryption; and more. QuickPopup pricing starts at US$25, and a free 30-day demo is available.