Thanks for the reply and sorry for the late response.
I guess it doesn’t work. I am locating a Waveshells v9 folder in ProgramFilesX86.(the folder contains 64bit dll. files. No waves folder in ProgramFiles which is for 64 bit software as far as I know.
Erased black list in roaming folder.
I reinstalled all the v9 plugins by running waves central in administrator mode.
Ran the Cubase 9 in administrator mode.
64 bit V9 plugins appears in blacklist section of plugin manager.
A message saying something like ''Reactivation failed Please contact to Vendor" when I try to push reactivate button in plugin manager.
I will try to communicate with complicated support centre of waves also.
I guess done it. As I sense from your reply, I’ve copied waveshell dll files at user/pc/appdata/wavesaudio to ProgramFiles Steinberg Vstplugins folder.
Now all seems ok. Thank you very much. Please correct or advise further if I miss to do anything else.