Vista 32 bit:

Several fences defined on the desktop.   Open WINRar Archive.   Contents are three folders and three files.   Select them all and drag to "open area" (not fenced) of the desktop.    They copy but do not show up anywhere on the desktop.   Repeat the same  and try to drag them out of the archive again.   Get duplicate folder/file warnings.

But wait there's more    (as the say on TV)!!!!

Open the desktop from within explorer.   Can see TWO of the folders from the .RAR PLUS all THREE files.  Other folder is not showing.   This is from the explorer window pointing to C:\Users\xxxxx\Desktop   (xxxxx = User Name).   

I delete the two folders and when I do, the three files (from the original archive) pop up on the deskop (but not within any fence)!!!!!!!     COOL!!!!!   8-)  

Have not tried to duplicate this.

Regards

B F