The plugin has several configurable settings. These settings are stored in the
[Autorefresh] Interval=<number of milliseconds>
This indicates (in milliseconds) how long after the last change the preview should be refreshed.
Maximum supported IE version
[Emulation] Installed IE version=<version number of IE engine>
This overrides the automatically detected version of Internet Explorer used for Browser emulation. This allows you to set the maximum version of Internet Explorer that will be supported. (This was useful for IE10, which was not properly recognized in the past). It can probably be left empty, since Internet Explorer 11 is supported in the latest version of the plug-in, and Internet Explorer is no longer under active development by Microsoft, so IE 12 is unlikely to ever see the light of day.