Comment by the_mitsuhiko

> In other words, since RtlDosPathNameToNtPathName_U converts C:\foo to \??\C:\foo, then an object named C: will behave like a drive letter. To give an example of what I mean by that: in an alternate universe, RtlDosPathNameToNtPathName_U could convert the path FOO:\bar to \??\FOO:\bar and then FOO: could behave like a drive letter.

For some reason I remember that the original xbox 360 had "drive letters" which were entire strings. Unfortunately I no longer have access to the developer docs and now I wonder if my mind completely made this up. I think it was something like "Game:\foo" and "Hdd0:\foo".