A range of file protections can be set on a per-file or per-directory basis. The protections can be on a per-user or per-group basis. This feature is described in Chapter 4, "Managing Shared Resources and Resource Security," in Microsoft Windows NT Server Concepts and Planning. Specific files to protect are described later in this Chapter, in the section "Protecting Files and Directories" under "High-Level Security." For procedural information, see Help.