Your thread title says PDR your post says PBR! Which is and what is it?
Knowing what the extension is would help us tell you if there is an older version that would work with your system or if there was another extension that would do what you need.
But from the information given, Pilou has given you the only answer possible.

Third approach could be to use php files instead of html files and simply include the one that contains the Hypercosm applet into another one (in case one doesn't want to use iFrames which can be the case sometimes)