Hi every one . I want to make drag and drop box. Could you give me advices about that. My target is: I took text files from our experiments and than i want to drag and drop it into command window.After that i want to control my calculations , plot diagrams etc... As you expected i have too many Experiment results and i want to make my calculations succesively thats why i need drag and drop box. how can i create it ?and how can i link Buttons with m files.