INT 21,3C - Create File Using Handle

	AH = 3C
	CX = file attribute  (see FILE ATTRIBUTES)
	DS:DX = pointer to ASCIIZ path name

	on return:
	CF = 0 if successful
	   = 1 if error
	AX = files handle if successful
	   = error code if failure  (see DOS ERROR CODES)

	- if file already exists, it is truncated to zero bytes on opening