The EXE will probably configure your PC to remote access and also scan your PC (a bit like a Hijackthis.exe report) so that they can see exactly what you;re running. That's their game they get you to believe that you can't do without them and then they charge you either an annual or one off fee to fix what really doesn't need fixing..
Such is the way of PC support these days
Stick to the forum if you've got a problem, you might get a slanging match between myself and Zing about the problem but it will be honest and experienced advice