Windows 7 Taskbar Enhancement - Open all program windows

It's frustrating to me that clicking on a taskbar item does exactly the same thing as hovering over it for a second. I argue that clicking should be more functional.

Does anybody know how to code a little program that will open all windows of a particular program when clicking on that program's icon in the taskbar?

My example is I have a netbook with a tiny screen and have to switch between MatLAB and Microsoft Word. Word is one window and MatLAB is two, the editor and the command window. If I click on MatLAB, I get only one window at a time, which means I have to bring the editor up, then go back to the taskbar and bring the command window up. This could all be simplified with one click.

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