Can't uninstall

i have this program Fl studio and it work fine but i just do't want it any more. So i went to control pannel, add and remove programs. It was not there... I tried removing a program that is part of it but it still works. I went to Zsoft unistaller and it didn't have it either. Is this one of those programs that you just don't need to install. It is in my programs folder. What should i do?

Put a link up to the programs site please. Could it be a self contained program like hijack this?

i got it was just erased the files worked out fine thanks anyway.