Using the EmulatorParam and BramParam properties of the ActiveX, you have access to advanced configuration of the emulator (syntax param1=value1;param2=value2;...)
EmulatorParam
zipspeed 0, 1, .. 'till 15 (0=100%, 1=93.75%, 15=6.25%) (default value=0 (100%)
driveemulation low or fast (default value=slow for slot6boot, fast othewise)
setstart slot:path Automatically launch any application from GS/OS
slot = 71 or 51, according to your system disk location
path = application path. format PREFIX:APPLICATION
E.g : 71:ARKANOID:ARKANOID
SetStart.CFG must exist on your SystemDisk!
joystickmode none, mouse or joystick default is joystick if present, else mouse
BramParam
forcespeed normal or fast default value=normal(1mhz) for slot6 boot, fast otherwise
font black,dark-blue, dark-green, medium-blue,
brown, light-gray, green, aquamarine,
deep-red, purple, dark-gray, light-blue,
orange, pink, yellow or white
Font color
background (idem)
border (idem)
columns 40 or 80 Display mode (40 or 80 columns)
address(decimal) value(decimal) Set any value of the bram