Thank you, you are a saint.
This is the only way this works that I've found.
And for those of you who can't/don't want to do that:
instead of uninstalling and reinstalling each time, you can just go to the application and put it in a rar file (as stored) and just delete the real file, that way you can just extract it each time you need it. Much easier and simpler than re-installing. I haven't tested it, but it's never failed in the past for me.
or change the .exe to something else. Whatever works for you...