ByteScout licenses their code to developers as a way to jumpstart their work -- buy whatever & you won't have to code that part yourself. I'd guess because of that the GUIs on their standalone apps tend to be a bit sparse. To be honest, in this case I didn't see much reason to bother with it, but if you do install Image to Video GUI there's something I think you should be aware of...
Installing Image to Video GUI adds 3 files to Windows\ System32\ [32-bit Windows] or Windows\ SysWOW64\ [64-bit Windows]. BytescoutAudioLoopFilter.dll - BytescoutImageToVideo.dll - BytescoutImageToVideoFilter.dll. Two of those are DirectShow filters, & DS filters can be finicky, ornery beasts! Without wandering into the weeds with a long technical essay, I'll just say that DS filters can interact, and adding one or more DS filters can break software you've already got installed. If you do have problems with other software, thankfully uninstalling Image to Video GUI also removes its DS filters. Usually that's enough, though rarely you might have to resort to restoring a backup because the settings for your previously installed DS filters might have been altered/damaged.