Hell's quest request to change browser on private server

Got Hellsquest 0.9 and tried to use it on adventuresguild and it requests me to use a different browser










is there a way to fix this or change the browser
i think its important to mention that the server is using its own launcher

Outdated, was built 9 years ago.

To fix this requires (1) an overall understanding on the program's language which in this case is "pascal" and (2) a good understanding on the flow (programming) of the source code and game itself.