WindowShade lets you hide the windows that are obscuring your view temporarily--completely hassle-free and unobtrusive for your eye. Just by double-clicking the window titlebar, or pressing the Shift or Control key twice, the window will roll into just the window title bar, letting you see and interact with the windows located below the current window. Another feature WindowShade offers is Make Window Transparent.
||Free to try
||Windows 2000/XP/2003 Server