INT 66 - PenDOS - TDMOUSE.EXE - INITIALIZE                                      
	AH = 12h
Return: CF clear
	AX = 0000h
Note:	this function calls the old mouse handler with functions 0000h, 0002h,
	  0007h, 0008h, 000Fh, 0004h, and 000Ch (in that order)
SeeAlso: AH=13h