It is inevitable that when you are working on the PC you have various windows open at the same time, but sometimes some windows are more important than others and you want to keep them on top of everything else. One way to achieve this is with Win On Top.
With Win On Top you can select any of the active windows and place it always active at the top of desktop. It never loses focus of the window even if there are many open. At any time you can deactivate it and activate another window instead.
Win On Top, apart from being totally free, works discreetly, minimized in the taskbar.