FileAttributes in IRP_MJ_CREATE path

Hi, Gurus.

In my filesystem filter driver and it handles IRP_MJ_CREATE and got strange
value in IrpSp->Parameters.CreateFileAttributes. It’s zero, no bit was set.
Do anyone know what “FileAttributes==0” means?

I read DDK documnet and did not find any clear description, and I also took
a look at FastFat source code in IFSKIT and it is handled same as
FILE_ATTRIBUTE_NORMAL as long as I see source code. But I am not sure…

This happens on W2K when new file creation on explorer with right click. Can
I assume 0 is same meaning as FILE_ATTRIBUTE_NORMAL?

Could you please give me your help? Any pointer to this issue is also
welcome.

Thank you,
Hideyuki Inamasu.