Changes your wallpaper every sixty seconds to a fresh one from Unsplash.
Download the zip file and extract it somewhere where you won't delete it. Create a shortcut of the UnsplashWallpapers.exe by right-clicking it and pressing "Create shortcut". Then press Win + R, enter shell:startup and drag & drop the shortcut into it. This way, Unsplash Wallpapers will start everytime you boot your machine.
The .exe file is just a compiled batch file that runs in the background. The source code can be found at UnsplashWallpapers.bat.
Only wget, which is included in the zip file.