Hi Mettelus, when I updated I believe it was 64bit, I don't remember if the program "asked" specifically?
 

Well, for me, the 32-bit Dimension pro is called 'Dimension Pro.dll' and the 64-bit version is called 'Dimension Pro x64.dll'.
 

Check the Sonar About screen - it should read 
"Version: 21.4.00 BUILD 27 - x64"
 

Installing with C3 would install the 64bit version on a 64bit OS. There is no option to force a 32bit install with C3 on a 64bit OS. The 64bit dll would install in "C:\Program Files\Cakewalk\Vstplugins\Dimension Pro" by default. I wonder if you are scanning  "c:\program files (x86)\cakewalk\vstplugins" and SONAR is picking up 32bit dll possibly wrapped in jBridge and you are using it instead of the 64bit version of DPro.

Dim Pro should run Stand-Alone. The installer, from way back, placed a shortcut on My Desktop and allows to launch from there.
 

"Solved" it would seem that somewhere within "Everett" there was a Break with jBridge and for some reason the Path looked at Dimension Pro 32bit? but if I rolled-Back to Dorchester the path looks at DP 64bit?? so my current project has Strings with DPro 64bit.
 
I would like to thank the members of Cakewalk for the Help!