Unlocker 1.8.1

Unlocker is a Windows Explorer extension allowing you with a simple right-click on a file or folder to get rid of error message such as error deleting file or folder, cannot delete folder: it's being used by another person or program. Simply right click the folder or file and select Unlocker. If the folder or file is locked, a window listing of lockers will appear. Select the lockers and click Unlock and you are done.

http://ccollomb.free.fr/unlocker/unlocker1.8.1.exe