I am glad to see I am not alone in finding that dialog box annoying.
Since I've been doing a lot of file copying recently, I have come to realize that this prompt only occurs when copying out of a zip archive. Furthermore, it is totally useless. It adds nothing to the UX and serves as a source of confusion.
When I copy a folder out of a zip archive, it should behave EXACTLY the same as when I copy a folder from a non-zipped location in the file system. This extra stumbling block does not help the user - it only gets in the way of getting the job done. Very non-Dopus, IMHO.
Team Dopus - any comment?