It's actually quite easy to get the overlay.dll itself (you're able to download the dll by simply requesting it in your browser (simply add /overlay.dll to their domain)),
but you can't just inject it and use it.
By the looks if it, they even managed to somehow detect the trial time bypass,
since it's loading and injecting just fine, but "magically" unloading itself after a few minutes (along with showing "timeout" in the top-left corner).
The access itself seems to be done via a set of different php files on their server, along with a certain set of "flags" (or whatever the additions to the URL are called).
Even the Days and hours left are managed via the request / response from the php files.
So, well, there might be a way to get it working, at least if you know what you're doing
