INT 61 - Banyan VINES - FIND A SERVICE AX = 0007h BX = 0003h DS:DX -> port control block (see #03434) Return: AX = status (see AX=0007h/BX=0000h) SeeAlso: AX=0007h/BX=0002h,AX=0007h/BX=0004h,AX=0007h/BX=0005h