Hello Maximus,
Welcome to the forum, and thanks very much interest in Hauptwerk.
Although we don't test with FL Studio or officially support it as a VST host, I'm not aware of any reason that it shouldn't work, or feedback to that effect from other Hauptwerk/FL users.
Please first check that:
- you have the Hauptwerk VST Link plug-in inserted into your VST host's project (FL Studio), and that:
- you have 'Hauptwerk VST Link' selected as the audio output device on the 'General settings | Audio outputs' screen in Hauptwerk, and that:
- you have an organ loaded in Hauptwerk (e.g. St. Anne's), and that:
- you have some stops drawn in Hauptwerk (e.g. the Great Large Open Diapason .
If you click on the keys on the virtual Great keyboard in Hauptwerk you should then hear the sound through your VST host (FL Studio). Do you?