DeskMarker permits a drawing on Windows to windows with a any pin size and color. The control members mode makes the visual emphasizing possible of control members such as Buttons and windows. With transparency option whole control members can be coloured emphasized. In free hand the mode can be drawn at will. Drawing like also the deletion of the pin is made by a combination of keys for simple and comfortable working. Desk marker is particularly for computer schools to be suitable or in any operational area where explanations by Windows surfaces a visual emphasis be made must.