It is assumed that by now you have downloaded SmartPropoPlus installer:
Now run the SmartPropoPlus installer.
Click NEXT and select Destination Location - the default is just fine.
Click NEXT and select Start Menu Folder
Click NEXT and check the Desktop icon (Not really needed)
Click NEXT - You are now ready to install.
Click INSTALL - It will install SmartPropoPlus and vJoy - Virtual Joystick driver. Wait for vJoy to complete:
Installation is complete - Click FINISH to start SmartPropoPlus and configuration
You are now ready to start a short configuration process.