INT 17 - Shamrock Software NET.24 v3.11+ - RECEIVE BLOCK, WITH HANDSHAKE        
	AX = 2408h
Return: AL = status (see also #00640)
	    06h end of data
	CX = number of bytes in receive buffer
	DX:SI -> receive buffer
SeeAlso: AX=2401h,AX=2405h,AX=2409h