Hello,
in this thread (http://www.osronline.com/showthread.cfm?link=233607) I was told that FltCreateFileEx2 should fail with STATUS_MOUNT_POINT_NOT_RESOLVED for path which contains mount point. That was true for CSV volume on Win 2012 server 64bit where mount point “\Device\HarddiskVolume1\ClusterStorage\Volume0” pointed to “\Device\CSVVolume0”.
Now I observe different behavior on Win7 32bit, where I have mount point “c:\mount” to FAT32 volume. In PreCreate callback of minifilter I see fileobject for “\Device\HarddiskVolume1\mount\test.txt” but when I call FltCreateFileEx2 for that path I get handle and file object for “\Device\HarddiskVolume3\test.txt”. So it means FltCreateFileEx2 didn’t fail with STATUS_MOUNT_POINT_NOT_RESOLVED, but resolved the mount point to destination file on FAT32 volume. Why?
Thanks.