Ok ... so Waves installed the following:
Waves Shell - VST 9.0_x64.dll in a subfolder under "Program Files"
it also installed:
Waves Shell - VST 9.0.dll in the VSTPlugins subfolder of the Cakewalk folder under "Program Files (x86)"
Both of these files were also installed in a Waves folder under "Program Files (x86).
The relevant .dll files for the plug-ins were also installed in the Waves folder under "Program Files (x86)
It has me wondering ... are the Tubes, Tape and Transistor plugs 32 or 64 bit?