The GGG client (and maybe others) now has different addresses from the Steam client, so I have added a 3rd option to the .exe version of Speeder when Speeder first loads. Choose "2" if you are playing on Steam. Otherwise, choose "3."
Because the .dll version of Speeder requires Launcher, you will temporarily be unable to use the .dll version if you are not playing on Steam. I will push version 91 of the Launcher out as soon as possible to resolve this.
The .exe version of Speeder must be 12+ in order for it to work on any non-Steam client. Click Run Speeder (.exe Method), and Launcher will auto-download the most up-to-date version.