Instalation Hahn Dynamic Scenery:

Copy hdyn-dod.bgl and hdyn-dki.bgl to your hahn-scenery
folder or to your main scenery folder. Activate Dynamic
Scenery in FS98 and mark the Aircraft service traffic. Also
the scenery frequency must be on very dense.
Thats all for this Hahn scenery.

For more details and compability with other dynamic
scenery please read the instructions of DOD by Rafael 
Sanchez and Dynkit of Konstantin Kukushkin.

Many thanks to them, gracias Rafael and Konstantin.