ZoomIt

This is really useful software to zoom on Windows. This must be useful tool during your presentation.

• No need to install; when you download the file and extract it, you will find ZoomIt.exe. All you have to do is run the exe file.
• How to use:
• Ctr + 1: Zoom
• Focused
• Move up/down or left/right
• Left-click to hold the screen
• Then you can draw and type
• Esc: Back to normal
• Ctr + 2: Draw without zoom
• Ctr + 3: Start timer

http://technet.microsoft.com/en-us/sysinternals/bb897434.aspx