I seem to having the same problem as others have had before me in that I can't download the software. I've tried the "auto.designspark.info/exe/RS_Logic_Module.zip" solution and it works just as well as the RS link " https://download.designspark.info/RS_Logic_Module.zip ", that is to say, it doesn't work at all!
Could this be a browser thing? I'm using Firefox. Seems a bit strange.