Unlocker ver 1.6.3 :
Unlocker helps you delete the following files types of files that cant be deleted normally :
Cannot delete file: Access is denied
There has been a sharing violation.
The source or destination file may be in use.
The file is in use by another program or user.
Make sure the disk is not full or write-protected and that the file is not currently in use.
Thanks to thamara_lk