by the handle im guessing you mean the window handle since its a dx... there is this little metal pin thing thats inside of your handle. there is a tool made specifically to get it out, but you can use something in your house to get it out, ive struggled with this as well, but basically you need something with a hook on the end, you have to pry the handle just a bit out (dont break it, it is plastic) to expose the pin thing then hook it using something, you might be able to get it with a flathead i dont remember what i used, then pull the pin out... fyi the pin is shaped like the greek letter "omega" look it up and when you see it you will get a better idea of what you are doing. if you have trouble with the window once you get that far pm me, i will help you out, its a bitch but its not very complex.