Final version released. Topic locked.
https://portableapps.com/apps/utilities/eraser_portable
Another one I'd mentioned a LONG time ago and hadn't thrown out there. This is Eraser, a secure file-deletion utility that can be used to fully wipe files or entire drives.
This one has a few registry entries that needed handling in multiple registry hives with different user-level permissions, but it should properly handle them all.
(link removed)
Please give it a try and post your feedback.
Thanks,
John
UPDATE (Pre-Release 2): Added in a file I left out of the installer package. Handled an additional registry key.