In Appeon 2015, you don't need to have the admin right to install the Appeon ActiveX control if you are using Chrome, Firefox, Opera or Safari Web browsers.

For IE browser: 
If you are using IE 8.0 or later on Windows Vista/7/2008/8/8.1, you can log into the machine with any user, because no special privilege is required to download and register the ActiveX control;

If you are using IE 8.0 or later on Windows 2003, or if using IE 7.0 or earlier, you must log in as a member of the Administrator group so you have the required permissions to download and register the ActiveX control successfully.

For more details please refer to the help documentation at:
http://www.appeon.com/support/documents/appeon_online_help/2015/installation_guide/bk01ch05s02s02.html#d0e3543