Neither will Net Admin or any other would be spy. You control access. With the change of a single option, you can delete a file to such a level that not even extravagant means of data recovery such as tunneling electron microscopy or magnetic field residue tracing will yield any useful data. Terminus also deals with free space on fixed or removable drives with Terminus DriveWiper, and its complement, SlackWiper, takes care of data fragments lurking in the slack space, that space between the end of a file and the end of the last cluster of drive space the file uses. This sites been around a long time, and they do a great job.
Software is rated, and easy to find, but some days the site seems a little slow.
Literally hundreds of programs are available. You get mainframe quality tech support, and the best tools all from one source. Well organized, and fast. However, you may have to wade through a ton of end user software before you get to applications that you may actually find useful. NT Shareware One of our favorite sites.