1. Download  complete source and keep it aside with exe (same folder)
  2. Use following commands to exe file

    "Open-EID-" /install /quiet AutoUpdate=0 IconsDesktop=0 RunQesteidutil=0 FirefoxSupport=0
    Depending on requirement you can alter command for firefox or chrome.

    Add log file also with: /log <path.log>
  3. It will auto upgrade previous versions as well
  4. while removal use cache data for uninstallation
    "C:\ProgramData\Package Cache\{d23663a7-6af7-4a3f-a7ec-458e9d3ac442}\Open-EID-" /uninstall /quiet
    You will get exact location fro registry.

These commands will work same for all previous version.