Scol

i just encountered this the first time i viewed a browser based .pak on chrome/win 7

it appears that the scol plugin is an NPAPI plugin, which chrome has stopped allowing viewers to use without relaunching the browser with a special command, and here is the bad part, every time you want to run the plugin you have to reenable it (you can't enable NPAPI plugins across browser sessions without following the steps)

here is info which you guys may know about:

http://blog.chromium.org/2014/11/the-final-countdown-for-npapi.html
https://support.google.com/chrome/answer/6213033?hl=en

to get the plugin to work all the time, it must be in the PPAPI format