INT 21 - Attachmate Extra! - SET HOST WINDOW STATE AH = A2h AL = new host window status byte (see #01798) SeeAlso: AH=A1h Bitfields for Attachmate Extra! host window status: Bit(s) Description (Table 01798) 7 0=power off, 1=power on 6 0=not installed, 1=installed 5-3 reserved 2-0 window number 1-4=host B-E