You don't really remove the background in a photo, but select the area(s) you want, & copy that somewhere else. In old fashioned software, before transparency became a thing, you'd paint over the background. Because so much of what you can do in image editing software depends on making often very accurate selections, most image editors include several tools just for that -- better editors have one or more so-called intelligent tools, that try to eliminate the need to tediously trace the edges of your selection(s).
SoftOrbits Background Remover seems a mix of both old & new, intelligent & not. If you've ever used a magic wand selection tool, which makes a selection based on the color where you clicked on an image, the basic idea of this software should be familiar... you paint the colors you want green, paint the colors you don't want red, and the app will save or discard everything based on matching the colors you painted over. There isn't any apparent edge detection at the stage when you're painting red & green, so the accuracy of your selection depends entirely on how accurately you paint. Everything you select to keep by painting green will be kept, so if you go over the edges of the object(s) you want, you'll keep that portion of the background.
That's not a problem if you stick to painting away from any edges, And, if the app does a good job figuring out what to keep -- when the app gets it wrong, fine tuning the selection of what you want to keep means tediously painting, tracing the object & its edges. But if you select something that you want to keep [paint it green], copy & then paste it, a 2nd toolbox appears with the magic wand selection tool that lets you select objects based on their color, along with freeform & rectangular selection tools. This 2nd toolbox also gives you access to the object removing mode, which can function similar to Inpaint.
Copying, then pasting from the clipboard seems to paste the entire image rather than your selection. When you remove something as the background, that area becomes transparent, but without the usual checkerboard pattern that shows you areas that are transparent. You can add a background, & if you do, it will show through those areas that are transparent.
So what's SoftOrbits Background Remover good for? Quick & dirty, perhaps rough replacement of the background in an image. It doesn't have feathering or defringing settings, so it's nowhere near the tools even a hobbyist would use, but the hands-on part couldn't be easier. Actual processing takes a while, but you could be doing something else during the wait.
Installation adds the program's folder & a couple of desktop & start menu shortcuts -- the registry gets a key for the app & one for uninstall. Recent SoftOrbits giveaways would only activate during the giveaway period -- I assume this would be the same.