INT 61 u - PC/TCP kernel v2.05 - "set_option" - ??? AH = 20h BX = connection handle??? CX = ??? DS:DX -> ??? SI = ??? DI = ??? Return: CF clear if successful CF set on error AX = error code (see INT 61"PC/TCP") SeeAlso: INT 61/AH=00h"PC/TCP",INT 61/AH=21h