after downloading, I realized it was a down loader to download this app. I do not like down loaders installed on my PC without my choosing. I deleted the down loader after it was downloaded. I did not run the down loader. it would have been a nice app to try out. even though you say it doesn’t leave anything on my PC, it does. I have tried your down loader once. I went to the site and downloaded the trial, before trying this site download, figured the key would be given, it was not given. that is why I deleted everything about this app. thanks but no thanks.