Thank you Shadowfax.
Yes, I did.
I am sure, I transfered the dll into the wrong folder, because looking into the listing, I cannot see another instrument. But lots of VST3 plugins and some plugins like flanger, phaser, panner, Ring-Modulator.
To find the folder, before transfering it, I have searched for the VST2 Folder.
Do you have a clue to find the right one?
Have nice week
Burkhard