title: How to specify an icon for exe file which is different from the title bar icon when using NSIS to create an installer?
body: <p>I'm using NSIS to create my own installer, I know we can use the instruction:
  <code>!define MUI_ICON path_to_icon_file.ico</code>
  to set the icon for the installer. But it sets both the title bar icon and the exe file icon. How can I set them separately with different icons?</p>