672763CL01 INT 67 - VIDEMS.SYS v1.31+ - INSTALLATION CHECK
672763CL02 INT 67 - VIDEMS.SYS v1.31+ - FLUSH EMS TO VIDEO RAM
672763CL03 INT 67 - VIDEMS.SYS v1.31+ - RELOAD EMS FROM VIDEO RAM
672763CL04 INT 67 - VIDEMS.SYS v1.31+ - RETURN HIDDEN BLOCK SIZE
672763CL05 INT 67 - VIDEMS.SYS v1.31+ - RETURN PHYSICAL PAGE SIZE
672763CL06 INT 67 - VIDEMS.SYS v1.50+ - RETURN VIDEO RAM SIZE