It’s a real challenge to find screen-sharing software that meets our requirements. Apple Remote Desktop only works with Macs or VNC-enabled PCs, and network admins typically do not consider VNC to be sufficiently secure. Altiris is only available to domain admins.
Enter Bosco’s Screen Share. It’s free, cross-platform, and application-based, which provides much better security. Bosco’s allows you to connect to another person who is running the same software and either view, control, or project to their screen. It’s a quick and easy way for a teacher to show the screens of individual students during class. Your computer is only available when the software is running, and you are always asked for permission when someone wants to connect to your computer.
There are two small downsides. The teacher cannot quickly see the screens of all the students (in order to choose one, for example), and that the students may also connect directly to each other (which can become a distraction).
Two tech tips: Sharing your screen is a two-step process: 1) “Dial” the IP address of the other user or select it from the Favorites menu. 2) Choose whether you want to View, Control, or Project to the other user’s screen. Projecting to a teacher’s machine automatically puts you in full-screen mode, which is the quickest way to get student work on a data projector screen. Finer image quality is an available preference.
Bosco’s Screen Share appears to offers a great balance of features, ease-of-use, affordability, and security.