Format of DPMI resident service provider structure:
Offset	Size	Description	)
 00h	QWORD	descriptor for 16-bit data segment
 08h	QWORD	descriptor for 16-bit code segment (zeros if not supported)
 10h	WORD	offset of 16-bit callback procedure
 12h  2 BYTEs	reserved
 14h	QWORD	descriptor for 32-bit data segment
 1Ch	QWORD	descriptor for 32-bit code segment (zeros if not supported)
 24h	DWORD	offset of 32-bit callback procedure