Drag and Drop Component Suite 3.7 一套简化拖放操作的组件包，使你开发的程序很容易就支持shell的拖放操作，虽然很老了，不过也支持Delphi 7。-Drag and Drop Component Suite 3.7 simplified set of drag and drop components of the package, allows you to the program is very easy to drag and drop support

Open source procedure to drag and drop files in delphi

como fazer drag drop com delphi e arquivos