Microsoft Dfs?

http://www.windowsnetworking.com/article...ystem.html

MICROSOFT DFSMicrosoft's Distributed File System, or Dfs (pronounced "doofus")(1), provides a stable, location-independent(2) naming scheme for all shared files you need to access when using Windows. A single "UNC"(3) share, or a single drive mapped to such a share, is able to contain files and directories on any number of file servers. It works by looking up the actual locations of remote shares in a table called the Dfs map, in a way very similar to automount mapping in UNIX (see UNIX Automount Mapping in CSE).The UNC name for all Dfs files in CSE begins with \\ntdfs\cs. By convention \\ntdfs\cs will automatically be associated with drive letter O:. If this is not the case you can use one of the file manager tools to map \\ntdfs\cs to O:, or you can enter the command `net use O: \\ntdfs\cs'.

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