<Mapping a Drive Letter Programmatically ⁄ >

Modern computers are often connected to a network with access to many other remote resources, including shared folders, printers and other devices. These resources are usually referenced with a unique path name defined using the Uniform Naming Convention (UNC). UNC paths generally specify the name of a machine, or cluster of devices, and the name of a folder, file or other resource that is to be accessed. An example of a UNC path that you may use in Windows is "\BlackWaspImageGalleryWasp.ico". This path leads to the Wasp.ico file, which is held in a shared folder named "ImageGallery" on the "BlackWasp" server.

Earlier in the history of PC operating systems, DOS and Windows-base software relied on the use of drive letters to access files. In the same way that C: usually refers to the main hard disk drive in a PC, other letters would be mapped to networked resources. This permitted applications to open and save files to local and networked folders using the same naming conventions. For example, the "\BlackWaspImageGallery" could be mapped to I:, allowing the file described earlier to be accessed using the path, "I:Wasp.ico".



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