In Ubuntu 11.04, if I dragged a file to "Home" launcher on unity launcher, all nautilus windows would pop up and I could choose the window to which I want to move my file in. Also if I moved the file to the evolution launcher when a new e-mail is open, I could drag the file to "new e-mail" window and easily attach it to the e-mail. After upgrading to 11.10, this functionality seems to be off.

Is it possible to use the Unity launcher to drag and drop the files to a window in Ubuntu 11.10?