Invisible Viewer is an add-on for Windows Explorer, designed to view digital images on your hard disk or network drives without running any applications, without permanent mouse clicks or pressings the keys on your keyboard. Invisible Viewer provides the simplest way to view digital images in JPG, BMP, PNG, TIF, TGA, PCT and EPS file formats. To view image you should only place the mouse pointer over a file name in the Windows Explorer window and then the popup window with image will appear on left or right side of the pointer. If you move the mouse pointer the window will disappear. Furthermore, you can view images on your Windows desktop or from standard Windows dialogs (Open, Save, Insert Attachment, etc).