GiMeSpace is a free program which works as desktop extender is a virtual desktop manager, it will allow you to expand your desktop without any limits.
How It Works?
When you move your mouse to the edge of your screen you will notice that your desktop extends beyond the borders of your normal desktop. It provides a cheap alternative for adding more monitors to your computer. Some graphic cards offer the option of hardware panning when the physical screen is smaller then the hardware buffer, This program is offering a similar function, but the size of your desktop is much bigger (no limits!). New: a 3072 x 2304 virtual screen driver including navigator with zoom function.
It takes less than 500kB of disk space and is compatible with all Windows Operating Systems from 98 to windows 7 that able to extend unlimited virtual screens in Windows PC environments.