dropzone inside max to get a file?

hello everybody

while practising i am facing a problem about drag and drop.
does anybody know how i can make a drop zone/window inside max to get the url of the file.like when i directly drop a file of any extension from explorer ,i like to get the files location.and do different types of thing with the file. like auto create a specific material or processing the file any other way.

dot net could be the solution.but i dont know about it. is there a way to do the same with maxscript?

thanks for reading and hope you can help.