First, thanks for your help !
Re-install did not change anything, same problem...
All DAWs looking in the same place, with one exception, Steinberg Cubase looks in Steinberg path and Cakewalk in Cakewalk path. All other paths are the same...
I only installed 64 Bit versions of the PA plugins
So bx_bassdude VST3 is in
C:\Program Files\Common Files\VST3
bx_bassdude VST2 is in:
C:\Program Files\VSTPlugIns 64 Bit\Plugin Alliance
These two paths are in Cubase and in CBB.
I take a scan there is no other dll in any other paths.