WindowTop allows you to set the transparency of any Windows as well as set it on top and even allow click-through.The first thing we got was an ad for Bitsum Technologies, even with the portable version, which we didn't care for, but it only shows one-time, on the first run.There's an option to "set click-through, " but we don't know what that means and it froze up the next Windows we opened every time, and on the second attempt to find out what it does, it froze the entire computer up. They do mention that some modern and metro apps might not work with it. We assume this means you can click right through the top Window and would have liked to see that working.From the right-click of the program's taskbar icon, you have additional choices including disabling toolbar menu, click-through mode and set top for all Windows.Overall, despite the one bug we encountered, having quick access to change the settings of any Window is something we find very useful and think you will as well.