Kedaman,

I use a timers to check the existance of new files every few minutes or so.
The way you describe sounds like very resource consuming to me. Sure, Timer is a control, but I feel that is an advantage because it acts more or less independant to a certain degree. If you program DoEvent loops your program will be (very) busy even if the user is out for lunch, or is using some other app with your program in the background.

By the way, I wouldn't call the way other people work higly unprofessional. Most people decides on something because it fits their purposes. Most of us got to have their app's up and running as quickly as possible. I'm not so sure if reinventing the wheel would be much of a help then.