Hi, I'm not sure if this is a bug or not, but the AddStreamToFile do not seems to work. Here's my source of the add to zip // There are no zip file of the aFileName before this.. Zipmaster1.ZipFileName := aFileName; AStream.SaveToStream(zipmrFilterbox.ZipStream); Zipmaster1.AddStreamToFile(Pages[nPageCount].Caption + '.flt'); I thought that the zip file aFileName will be created but nothing happened.