Min version	Vista SP1
Max version	10 TH2
x64 offset offset:bitpos	Field Name
0x0000	uint16_t Id
0x0002	uint8_t Version
0x0003	uint8_t Channel
0x0004	uint8_t Level
0x0005	uint8_t Opcode
0x0006	uint16_t Task
0x0008	uint64_t Keyword