This program was created to overwrite old deleted files. It works a bit differently than other programs similar to it, as it does not create one large file to completely fill the remaining disk space. Instead it creates and deletes smaller sized pseudo-data packages (PDP). If the program is correctly set, then based on your system's performance level, it should run in the background with little to no CPU usage. In turn you will constantly be protecting your computer by overwriting old files that may contain sensitive data with PDP's, but without the hassle of having to create a large file to completely fill your remaining disk space.
||Microsoft .NET Framework 3.5