DETAILED DESCRIPTION Exemplary Operating Environment FIG.
1 and the following discussion are intended to provide a brief, general description of a suitable computing environment in which the invention may be implemented.
Although not required, the invention will be described in the general context of computer-executable instructions, such as program modules, being executed by a personal computer.
Generally, program modules include routines, programs, objects, components, data structures, etc.
, that perform particular tasks or implement particular abstract data types.
Moreover, those skilled in the art will appreciate that the invention may be practiced with other computer system configurations, including hand-held devices, multiprocessor systems, microprocessor-based or programmable consumer electronics, network PCs, minicomputers, mainframe computers, and the like.
The invention may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network.
In a distributed computing environment, program modules may be located in both local and remote memory storage devices.
With reference to FIG.
1, an exemplary system for implementing the invention includes a general purpose computing device in the form of a conventional personal computer 20, including a processing unit 21, a system memory 22, and a system bus 24 that couples various system components including system memory 22 to processing unit 21.
System bus 23 may be any of several types of bus structures including a memory bus or memory controller, a peripheral bus, and a local bus using any of a variety of bus architectures.
System memory 22 includes read only memory (ROM) 24 and random access memory (RAM) 25.
A basic input/output system (BIOS) 26, containing the basic routines that help to transfer information between elements within personal computer 20, such as during start-up, is stored in ROM 24.
Personal computer 20 further includes a hard disk drive 27 for reading from and writing to a hard disk, a magnetic disk drive 28 for reading from or writing to a removable magnetic disk 29 and an optical disk drive 30 for reading from or writing to a removable optical disk 31 such as a CD ROM or other optical media
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