Back in the old days, there used to be a DOS command that would let you create a drive letter out of thin air. For instance, setting c:\somefolder\subfolder to the letter F:, then all the contents of "subfolder" would appear to be just like drive F:.

But I don't remember the command and I seem to recall it got deprecated sometime around win98 anyway.

Anybody know how to get this done in the newer OS's?