Fix broken BB Flachback .fbr file or extract video

I have made a several hour long screenrecodrung using the Program BB Flachback Pro Recorder This program generates .fbr files, which can only be opened with this program. When I try to open this file, it tells me that there is some kind of error: External exception EEFFACE and when I click OK... it says: Cannot focus a disabled or invisible window. I guess the file is somehow corrupt. Now it would be great if anyone could do any of the following with this file: 1) Fix the file somehow so I can play some or all of it. 2) Convert it to another video type of file 3) Extract parts of the video if not all is possible the file is 500 MB large and would be supplied via Dropbox download link. thanks!