Peter, our indispensable ESL tech support, recently pointed out Zoom It to me. It’s part of the Microsoft Sys Internals Suite. From what I gather, a couple of software developers named Bryce Cogswell and Mark Russinovich came up with these utilities to do things that the crew in Redmond didn’t think of. Eventually, they formed their own company to promote them which was purchased my Microsoft. To learn more, search for some of these names on Wikipedia. I’m sure there is an interesting and geektastic story behind all of it, but I digress.
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Microsoft Sys Internals includes utilities like Zoom It.
For users of Wii-based interactive whiteboards, ZoomIt may be very useful. After a hotkey is pressed, ZoomIt gives you the ability to zoom in on an area of the screen, move around, and write on the screen. It works with all versions of windows and at only 129KB to download, it’s a pretty efficient little piece of software.
I haven’t used this myself, but it seems like it could be pretty useful. If you try it, leave me a comment and tell me what you think
ESL Technology.com 
I have not tried it but it looks very very useful.