+#define FILE_DEVICE_FILE_SYSTEM 9
+#define METHOD_BUFFERED 0
+#define FILE_ANY_ACCESS 0x00000000
+#define CTL_CODE(t,f,m,a) (((t)<<16)|((a)<<14)|((f)<<2)|(m))
+#define FSCTL_GET_REPARSE_POINT \
+ CTL_CODE(FILE_DEVICE_FILE_SYSTEM, 42, METHOD_BUFFERED, FILE_ANY_ACCESS)