Hi, I was wonderin. For anyone whose ever used Dark Basic Software, how do you..

get to the program itself. I can%26#39;t find it on my windows files. I downloaded it online and payed 50 for it, but I can%26#39;t even find it where I told it to save to.  Please help, if you guys can tell me where to or how to open this program it will be a really great help thnx. This program helps you make videogames, but I just can seem to find it anywhere on windows.  Help is need big time. Thnx in advance.