Change file or folder attributes easily
Attribute Changer is a good example of the kind of software that has been created for a very specific purpose and does its job perfectly well, with no hassle or nuisances for the user. In this case, the program adds a new command to the Explorer context menu from which you can easily change attributes.
It works both with files and folders, both with a single item or massive selections. Besides enabling you to change the basic attributes, you can also modify date and time with extraordinary precision.
Attribute Changer goes straight to the point: simple interface and easy to use. It has no configuration options (probably because it doesn't need them) but includes a fairly complete Help system to solve all your doubts about its usage.