Determining the location of wireless devices is improved by storing location information in RFID devices. A preform is provided in the shape of the article to be molded. During assembly, the needle valve body is extended through a bore of the holder as a threading portion of the valve body rotateable cuts an interior threading groove into the threadable holder. Addresses for a look-up table are then generated from the combined phase accumulator outputs and extrapolated outputs, such that the frequency and phase compensation offsets provided to a phase derotator and slicer are at the original symbol rate. With the present invention, a network administrator, for example, can set familiar network and file configuration options that automatically result in security changes without requiring extensive knowledge of the operating system kernel or how to develop a mandatory access control security policy. The snapshot server program permits one or more client programs to request snapshots of data from the snapshot server program such that the data included in or referenced by a snapshot originates from one or more host server programs and the data is accessible to the snapshot server program, but is managed independently of the snapshot server program.