Re: NtCreateFile and STATUS_OBJECT_PATH_NOT_FOUND (0x0000003A)

On Sun, 1 Aug 2004 10:45:20 -0700, Myria <[email protected]>  
wrote:
> That is a Windows NT thing, not Xbox.  In Win32, the CreateFile API call
> does not directly access the root of the NT namespace - kernel32.dll uses
> ObDosDevices and translates to NtCreateFile.  However, there is a "back
> door" in this mechanism.  \\.\ in Win32 means to open any object that is  
> in
> \?? aka \DosDevices.  There are many symbolic links there, like LPT1, so  
> you
> can open \\.\LPT1 with CreateFile.  The notation \\.\ looks like a UNC  
> path
> with "yourself" as the computer name, but it isn't the same as putting  
> your
> computer's name there.  GLOBALROOT is a symbolic link to \, the root of  
> the
> NT namespace.  In other words, \??\GLOBALROOT is a symlink to \.  This
> allows you to open any file object in the NT namespace using CreateFile,
> without having to bypass it and directly call NtCreateFile.  (This means
> that GLOBALROOT is rather useless if you are using NtCreateFile.   
> GLOBALROOT
> does not exist on Xbox.)

Again, many thanks for the thorough explanation.  Hopefully I have all  
bases covered now... thanks.

--
Craig Edwards


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