NtCreateFile and STATUS_OBJECT_PATH_NOT_FOUND (0x0000003A)

I am trying to port OpenXDK to compile under the GCC toolset, and have  
made a great deal of progress but can't seem to figure out why I get the  
error mentioned in the subject.  I realise that this isn't strictly (or  
even) related to xbox-linux, but I've been following this group for a  
while and figure you guys are the reigning experts in calling the
xboxkrnl.exe APIs.  Anyway, my code is listed below:

	RtlInitAnsiString(&filename, "\\??\\C:\\BLAH.TXT");
	debugPrint("Path="); debugPrint(filename.Buffer);
	debugPrint("Length="); debugPrintNum(filename.Length);
	debugPrint("MaxLength="); debugPrintNum(filename.MaximumLength);

	Attributes.ObjectName = &filename;
	Attributes.RootDirectory = NULL;
	Attributes.Attributes = OBJ_CASE_INSENSITIVE;

	ntStatus = NtCreateFile(
		&FileHandle,
		GENERIC_READ | SYNCHRONIZE,
		&Attributes,
		&Iosb,
		0,
		0,
		FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
		FILE_OPEN,
		FILE_RANDOM_ACCESS | FILE_SYNCHRONOUS_IO_NONALERT
		);

	debugPrint("NtStatus="); debugPrintNum(ntStatus);
	debugPrint("DosError="); debugPrintNum(RtlNtStatusToDosError(ntStatus));
	debugPrint("Handle="); debugPrintNum((int)FileHandle);

This runs with the following output (debugPrint is a debug function that  
writes to the video buffer in a small font so I can tell what is going on):

Path=\??\C:\BLAH.TXT
Length=0x0000000F
MaxLength=0x00000010
NtStatus=0x0000003A
DosError=0x00000003
Handle=0x00030FA0

I have tried myriads of different options (different drives (C:, D: and  
F:), file names, flags, etc) but *always* get the same error.  I know that  
other calls to xboxkrnl.exe APIs work just fine (RtlXXX,  
HalReturnToFirmware), and indeed, it seems to call NtCreateFile
successfully, but it seems to think it can't find the file.  I've been  
wrestling with this for days now; any advice or thoughts that anyone might  
be able to provide would be greatly appreciated.  Thanks a lot.

--
Craig Edwards


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