SDelete

SDelete is a command line utility that takes a number of options.
Homepage:	http://technet.microsoft.com/en-us/sysinternals/bb897443.aspx
Function:	Secure Deletion

Description

SDelete is a command line utility that takes a number of options. In any given use, it allows you to delete one or more files and/or directories, or to cleanse the free space on a logical disk.