From Softech di Germinara Francesco:
This is a very simple and nice utility used to change a permission attribute on a file (or a group of files) or on a directory and it's contents. The software is the equivalent of the Terminal window command chmod. You can view the current permission set for a item (selecting by browse button or dragging it on the window utility) and you can decide to set new permission for user owner, group owner and other. The permission that you can set are read, write or execute.
i tried so many things to erase two blocked folders on my desktop, nothing worked until i downloaded this program. it was just as easy as going to advanced options and unckick the "locked" option. something so simple i couldn't do it from the folder directly.