No sign of Dimension Pro within Sonar ?
I'd think that if the installer didn't complain, the files must have gone somewhere.
In the Windows registry, under
HKEY_LOCAL_MACHINE / SOFTWARE / Cakewalk Music Software / dp you'll find :
Company NameContents FolderLanguageMultisamples FolderRegUrlSerial NumberTypeUser NameVersion which should at least (if "dp" is there at all) tell you where the Multisamples are.
You have nothing in "C:\ProgramData\Cakewalk\Dimension Pro" ? I don't believe DimPro's
programs can go anywhere else.
Have you tried Windows Search to see where "Dimension Pro x64.dll" might be (should be in a "Dimension Pro" folder in your vstplugins folder) or "Multisamples" which should be in a "Dimension Pro" folder in some Cakewalk-related folder ? My folders are my own organisation so I'm not sure where things go if you just let them be installed in their default locations.