Focus Genie 

Make any window stay on Top, automatically sets the focus of an application as your mouse passes over it. To disable Focus Genie, just hit Ctrl-Shift-F and hit Ctrl-Shift-F again to enable it. If you would like an application to Stay on Top ...
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Taskbar Hide - hide windows program 

Hide windows program (hide applications)completely through a hotkey or as an icon in system tray.Hide some less used icons from tray.Arrange the windows on taskbar based on your choice.Automatically maximize all new windows or only new IE windows.
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Pixie 

Pixie is an image slideshow viewer for displaying your image collections in a small and convenient resizable desktop window.
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