Min version	2003/XP64 SP1
Max version	2003/XP64 SP2
x64 offset offset:bitpos	Field Name
0x0000	unsigned long CurrentIndex
0x0004	unsigned long MaxIndex
0x0008	uint64_t SpinLock
0x0010	void * Reserved
0x0018	struct _PROCESS_WS_WATCH_INFORMATION[1] WatchInfo