The Recycle Bin is just a directory on each drive called either recycled or recycler (depending on which Windows you are running). You do not see this directory in Windows because when Windows sees it, it does not show it and takes all of the files in it and combines them into the Recycle Bin.
If you open a Command Prompt (you can find this in Start - All Programs - Accessories), you can see it. Navigate back to the root directory by typing, "cd\". You can change to the recycler directory by typing, "cd recycler". Then you can type, "dir", to see what is in that directory. You can delete all of the files in this directory by typing, "del *", while you are in that directory (please be careful with this because it will delete all files in the directory that you are in). You can delete the recycler directory by going back to the root directory ( C:\ ) and typing, "rd recycler".
A1Click deletes the files in the Recycle Bin.