Int 21 Fn 19 - DOS 1+ - Get Current Default Drive [D] AH = 19h Return: AL = drive (00h = A:, 01h = B:, etc) Note: Novell NetWare uses the fact that DOS 2.x COMMAND.COM issues this call from a particular location every time it starts a command to determine when to issue an automatic EOJ See Also: AH=0Eh,AH=47h,AH=BBh