Min version	2003/XP64 SP1	Vista SP1	Vista SP2	8 Pre RTM	8.1
Max version	2003/XP64 SP2		7 SP1	8	10 TH2
x64 offset offset:bitpos	Field Name
0x0000	uint64_t Alignment	uint64_t Alignment
0x0000		struct <unnamed-tag> Header8			struct <unnamed-tag> HeaderX64
0x0000		struct <unnamed-tag> Header16	struct <unnamed-tag> Header16	struct <unnamed-tag> HeaderX64
0x0000			struct <unnamed-tag> HeaderX64
0x0008	uint64_t Region