Filezilla FTP Client Drag and Drop a Download Gives an Error

Windows XP OS.

After newly installing the freeware Filezilla FTP Client version 3.2.6.1, an error occurs stating, "Could not determine the target of the Drag&Drop operation. Either the shell extension is not installed properly or you didn't drop the files into an Explorer window." While in an FTP server, dragging a file for download directly to the desktop causes the error. The error does not occur if you dragged a file for download into the Filezilla directory on the left half of the application window. I read several solutions. One solution was to run cmd and register the shell extension, the other solution, reboot the computer. After fudging with the cmd lines, and not succeeding because Windows kept giving an error about my command syntax, I decided to reboot the computer and drag and drop worked without an error.

Working solution: Reboot.

Sources:
http://trac.filezilla-project.org/ticket/4385
http://forum.filezilla-project.org/viewtopic.php?f=2&t=8607