Format of DESQview Register Save Record:
Offset	Size	Description	)
 00h	WORD	AX
 02h	WORD	BX
 04h	WORD	CX
 06h	WORD	DX
 08h	WORD	DI
 0Ah	WORD	SI
 0Eh	WORD	DS
 10h	WORD	ES
 12h	DWORD	return address
 16h	WORD	original flags